1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sonja [21]
3 years ago
13

If x= -2, y = 4, find the value of 2x2 - 3xy + 5​

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
7 0

Answer:

I am assuming when you say 2x2 you mean 2x squared so using that, your answer should be -35 if Im correct.

Step-by-step explanation:

Brainliest?!?

Galina-37 [17]3 years ago
5 0

Answer:

21

Step-by-step explanation:

You might be interested in
Multiple Choice<br> Evaluate.<br> 1. -59 - 6 for g=-2 (1 point)<br> A.4<br> B.16<br> C.10<br> D.-13
Sergeeva-Olga [200]
Answer: A. 4

Im in high school this is simple math so. Your welcome
4 0
3 years ago
Read 2 more answers
I need help with homwork. (please) <br> On topic of exponents. Show all work
Blizzard [7]

Answer:

Step-by-step explanation:

Step-by-step explanation:

5:28^25 I think

6:keep the base multiply exponents

7:no because you would multiply the bases and keep the exponent the same

8:7 because 7 x 5= 35

1: 2 and 3 for the second part of it 2 and 5

2:7^30

3:54^3

4:Yes they are just flipped

5 0
2 years ago
Read 2 more answers
Solve algebraically for all values of x<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-4%7D%20%2Bx%3D6" id="TexFormula1" title="\s
kirza4 [7]

Answer:

x=5

sqrt of 5-4=1

then 1 +x(5)=6

7 0
3 years ago
Read 2 more answers
8/x2+6x times 2x product
sergejj [24]

Answer:

4 • (3x4 + 2)

 ———————

      x2    

Step-by-step explanation:

Step  1  :

            8

Simplify   ——

           x2

Equation at the end of step  1  :

  8    

 —— +  12x2

 x2    

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  x2  as the denominator :

           12x2     12x2 • x2

   12x2 =  ————  =  —————————

            1          x2    

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

8 + 12x2 • x2     12x4 + 8

—————————————  =  ————————

     x2              x2  

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  12x4 + 8  =   4 • (3x4 + 2)

Polynomial Roots Calculator :

3.2    Find roots (zeroes) of :       F(x) = 3x4 + 2

Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which   F(x)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  x  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  3  and the Trailing Constant is  2.

The factor(s) are:

of the Leading Coefficient :  1,3

of the Trailing Constant :  1 ,2

Let us test ....

  P    Q    P/Q    F(P/Q)     Divisor

     -1       1        -1.00        5.00    

     -1       3        -0.33        2.04    

     -2       1        -2.00        50.00    

     -2       3        -0.67        2.59    

     1       1        1.00        5.00    

     1       3        0.33        2.04    

     2       1        2.00        50.00    

     2       3        0.67        2.59    

Polynomial Roots Calculator found no rational roots

Final result :

 4 • (3x4 + 2)

 —————————————

      x2      

Processing ends successfully

plz mark me as brainliest :)

8 0
3 years ago
I need to know how to get the scale factor from a h-shaped polygon
Lesechka [4]
“To find the scale factor, we simply create a ratio of the lengths of two corresponding sides of two polygons. If the ratio is the same for all corresponding sides, then this is called the scale factor and the polygons are similar.”
5 0
3 years ago
Other questions:
  • Which expressions are differences of squares?
    8·2 answers
  • WHEN LOGARITHMIC FUNCTIONS ARE GRAPHED WHICH TRANSFORMATION WILL RESULT IN A Y INTERCEPT?
    13·2 answers
  • What is the median of the data set 10,7,9,9,4, 6?
    6·1 answer
  • (02.02 MC)
    5·1 answer
  • X - 4x - 12 = (x __ 2)(x ____ 6)<br> where do the plus and equal sign go
    7·1 answer
  • The sum of a number and 12 is 31. What is the number? 31 n 12.​
    15·1 answer
  • Please show workings on how to do it :)
    14·2 answers
  • Another easy one, Brainliest + 35 Points. per the usual
    8·2 answers
  • 10. Elvira has 3 caps: one red, one green, and one blue. She also has two green 1-shirts, one blue I-shirt
    13·1 answer
  • Find f^(-1)for the function f(x)= (1)/(x+2)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!