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
GaryK [48]
3 years ago
8

Whats an example of a quadratic equation that cannot be factored with a real solution?

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

Step-by-step explanation:

The key here is the "discriminant."  That's b^2 - 4ac, where a, b and c are the coefficients of the quadratic.

If the discriminant turns out to be positive, we have two real, different roots.

If the discriminant turns out to be zero, we have two real, equal roots.

Finally, if the discriminant turns out to be negative, we have two complex, different roots.  

Just supposing that a = 1 and b = 2, the discriminant would be

2^2 - 4(1)c.  Set this equal to 0 and solve for c:  4 - 4c = 0, or c = 1.  If c is greater than 1, the discriminant will be negative and we will have two comlex, different roots.

You might be interested in
What are the solutionso of 8x^2 = 6 + 22x
liraira [26]
You can get all the terms on one side, and then solve for x by any means:
0 = -8x^2+22x+6

Factor out a -2:
0 = -2(4x^2-11x-3)

Factor this equation:
0 = 4x^2-11x-3

I will use the AC method. To use it, first multiply a and c (in ax^2 + bx +c):
4*-3 = -12

Now, look for two numbers that multiply to -12 and add to -11. Obviously these numbers are -12 and 1. (-12*1 = -12 and -12+1  = -11). Now, because of rules, you set it up in a Punnett square:

4x^2        -12x
x              -3

Now, we find common factors of the terms in rows:
     _x_______-3__
4x| 4x^2        -12x
1   | x              -3

So, you can use this to write an equivalent expression to the quadratic given:
(x-3)(4x+1)

Now, we known the factors are (solve for x): 3 and -1/4.
3 0
3 years ago
Read 2 more answers
PLEASE HELP
Assoli18 [71]

Simplest form I can do

5 0
2 years ago
Maurice's family put a pool into their backyard. It is rectangular in shape and its dimension are 20 feet by 10 feet by 10 feet.
s344n2d4d5 [400]

Answer:

C. $150

Step-by-step explanation:

6 0
3 years ago
Los 2/9 de mis lapices son blancos y los 21 restantes azules. ¿Que fracción de lapices son azules? ¿Cuantos lapices en total ten
Gelneren [198K]

Answer:

7/9 son azules. hay 27 en total y hay 6 lapices de blanco

Step-by-step explanation:

8 0
3 years ago
Find a new function g(x) transformed from f(x)=-x-2 such that g(x) is perpendicular to f(x) .
sineoko [7]

The new function is g(x) =-1(1/-x) +2.

The transformation of function f(x) to function g(x) is given by g(x)=A f(Bx+ H)+K. where the constant A scales the function vertically. (A negative A reflects the function about the x-axis B scales the function horizontally. (A negative B reflects the function on the y-axis.) H shifts the function horizontally, and K shifts the function vertically.

Convert f(x) to g(x)

where the conversion is g(x)=f(x)+2.

A perpendicular line has negative reciprocal slopes, so for g(x) to be perpendicular to f(x), we need to get the negative reciprocal of -x, which is -1(1/-x)

So, f(x)=-x-2  ; m = -1

From the above information, we get g(x) as follows.

g(x) =-1(1/-x) +2

More problems related to finding new functions for a given function are below.

brainly.com/question/13825802?referrer=searchResults

#SPJ4

6 0
9 months ago
Other questions:
  • A previous analysis of paper boxes showed that the the standard deviation of their lengths is 9 millimeters. a packer wishes to
    13·1 answer
  • The sale price of these items in a store is 85% of its usual price. A The usual price of a sweatshirt is $18, what is its sale p
    14·2 answers
  • 75% of ? = 30 helppp
    11·2 answers
  • If Sally made an 84% on her math test that had 25 questions, how many questions out of the 25 did Sally answer correctly?
    11·2 answers
  • Daniel needs to sell candy bars For a club fundraiser. She starts with 72 candy bars and begin selling at a constant rate of eig
    9·1 answer
  • Which of the following would be a possible solution to the system of inequalities given below?
    15·1 answer
  • What is the area of this triangle?
    6·1 answer
  • Write an equation in slope-intercept form of a line that has a slope of 1/5 and a y-intercept of 4.​
    13·1 answer
  • PLS HELP WHAT IS THE ANSWER?!!
    15·1 answer
  • Solve using matrix inverse method 3x 2y 3x-2y+3z=8 , 2x+ y - z = 1, 4x-3y + 2z =4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!