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
JulijaS [17]
3 years ago
7

Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.

Mathematics
1 answer:
Xelga [282]3 years ago
6 0
Take 3 times 3 minus 2 times 5 times 2 minus 3 cubed plus 4 times negative 3
Use order of operations and answer will be
Negative 50
You might be interested in
Determine the next step for solving the quadratic equation by completing the square
GaryK [48]

Answer:

  • The two solutions are:           x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}

  • The next and every step are below.

Explanation:

1. -3=-2x^2+2x    : Given (addition property / add - 3 to both sides)

2. -3 = - 2(x^2-x)    : Given (commom factor - 2)

3. -3-1/2=-2(x^2-x+1/4)

    To obtain the perfect square it was added the square of half of the coefficient of x: (1/2)² = 1/4, inside the parenthesis.

Since, the terms inside the parentthesis are multiplied by - 2, you have to add - 2 (1/4) = - 1/2 to the left side of the equation.

4. Now, you have that the trinomial x² - x + 1/4 is a square perfect trinomial which is factored as (x - 1/2)² and get the expression:

-7/2=-2(x-1/2)^2

5. Divide both sides by - 2 to get the next expression:

-7/4=(x-1/2)^2

6. The last step is to extract squere root from both sides of the equality:

(x-1/2)=+/-\sqrt{\frac{7}{4}}\\ \\ x-1/2=+/-\frac{\sqrt{7} }{2}\\ \\ x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}

8 0
3 years ago
Write a corresponding real-world problem for each equation.
Kamila [148]

Answer:

It is 2 because it is a math question with the factors on the multipulcation

Step-by-step explanation:

6 0
4 years ago
HELP WITH GEOMETRY HW, WILL GIVE BRAINLIEST
vesna_86 [32]

Answer:

AFB

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A student performed the following steps to find the solution to the question x^2 - 2x - 15 = 0. Where did the student go wrong?
nataly862011 [7]

Answer:

D  In step 3

Step-by-step explanation:

Given polynomial:  x² - 2x - 15 = 0

Step 1:  factor the polynomial ⇒ (x + 3)(x - 5) = 0

Step 2:  x + 3 = 0  and  x - 5 = 0

Step 3:  x = -3  and x = 5

x - 5 = 0

Add 5 to both sides:

⇒ x - 5 + 5 = 0 + 5

⇒ x = 5

7 0
2 years ago
What is the answer for x-7>-12
Zolol [24]

Answer:

x>-5

Step-by-step explanation:

x-7>-12

Add 7 to each side

x-7+7>-12+7

x> -5

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to this question ? -7+17=
    12·2 answers
  • Determine o x 2x+15 3x-25
    8·1 answer
  • HELP GEOMETRY 10 POINTS
    14·1 answer
  • Multiply a number by 3 subtract 6 add 2 result is 20 what is the number
    6·2 answers
  • Help!! 10 PTS!!
    5·1 answer
  • If the mass of a box is 32 g and it's 4 cm wide 2 cm by 3 cm what is the density of the box
    12·1 answer
  • Sociologists say the percentage of the classic music lovers is about 5%. From the survey, we know that only 83 out of 2000 peopl
    9·1 answer
  • Rita offers to pay for 8 of her friends to play laser tag, but 3
    14·2 answers
  • In which pair do both decimals represent rational numbers?
    15·1 answer
  • Tommy has 5 jars of marble. Each Jar is filled 2/3 with marbles. How many full Jars does tommy have? Make a model and shade in t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!