AnswersFL-1200700-Mathematics for College Algebra MISSolving Quadratic Equations: Square Root Property

Solving Quadratic Equations: Square Root Property Answers

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What are the solutions to the quadratic equation x2 – 16 = 0?

A
x = 2 and x = –2
B
x = 4 and x = –4
C
x = 8 and x = –8
D
x = 16 and x = –16
2
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What are the solution(s) to the quadratic equation 9x2 = 4?

A
x = and x =
Option A
B
x = and x =
Option B
C
x = and x =
Option C
D
no real solution
3

What values of b satisfy 3(2b + 3)2 = 36?

A
b = and
Option A
B
b = and
Option B
C
b = and
Option C
D
b = and
Option D
4

What are the solution(s) to the quadratic equation x2 – 25 = 0?

A
x = 5 and x = –5
B
x = 25 and x = –25
C
x = 125 and x = –125
D
no real solution
5

What are the solutions to the quadratic equation (5y + 6)2 = 24?

A
y = and y =
Option A
B
y = and y =
Option B
C
y = and y =
Option C
D
y = and y =
Option D
6

Theo started to solve the quadratic equation (x + 2)2 – 9 = –5. He added 9 to both sides and the resulting equation was(x + 2)2 = 4. Next, he took the square root of each side.Which was the resulting equation of that step?

A
x + 2 = ±4
B
x + 2 = ±2
C
x + 2 = ±8
D
x + 2 = ±16
7

Which are the roots of the quadratic function f(b) = b2 – 75? Select two options.

Question illustration
A
b =
Option A
B
b =
Option B
C
b =
Option C
D
b =
Option D
E
b =
Option E
8

What are the solution(s) to the quadratic equation 40 − x2 = 0?

A
x = ±2
Option A
B
x = ±4
Option B
C
x = ±2
Option C
D
x = ±4
Option D
9

Nancy found that x=1 is one solution to the quadratic equation (x+2)2=a. What is the value of a?

A
-9
B
-3
C
3
D
9
10

What are the solutions to the quadratic equation 4x2 = 64?

A
x = −16 and x = 16
B
x = −8 and x = 8
C
x = −4 and x = 4
D
x = −2 and x = 2

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