Question 1

What is the first step in solving quadratic equation $$x^2+ 3x = 10?$$

Accepted Answer

subtract 10 from both sides to set the equation equal to 0

Answer

factor

Answer

combine similar terms

Answer

set each factor equal to zero

Question 2

What are the two characteristics we look for when trying to solve a quadratic equation?

Accepted Answer

a positive coefficient for $$x^2$$ and the equation set equal to 0

Answer

distribute and combine like terms

Answer

factor and cancel

Answer

there is no such thing as a quadratic equation

Question 3

Solve the following equation: $$x^2 -6x - 7 = 0$$

Accepted Answer

x = 7 and x = - 1

Answer

$$x = -7/5$$

Answer

x = 0

Answer

x = 1 and x = - 7

Question 4

What should you do first in solving this equation? $$x^2 + 6x - 13 = 3$$?

Accepted Answer

make it equal to 0 by subtracting 3 on each side

Answer

get factored form

Answer

find two numbers which add to make 6 and multiply to make - 13

Answer

Type it all in a calculator

Question 5

Solve for the following quadratic equation: $$5x^2 = 10x$$

Accepted Answer

x = 2 and x = 0

Answer

x = 2

Answer

x = - 2 and x = 0

Answer

x = - 2

Question 6

Solve the following quadratic equation: $$2x^2 -5x + 2 = 0$$

Accepted Answer

$$x = 1/2 $$ and x = 2

Answer

x = - 1 and x = - 4

Answer

x = 4 and x = 1

Answer

$$x = - 1/2$$  and x = - 2

Question 7

Convert $$x^2 -9x+20$$ to factored form and solve

Accepted Answer

(x - 4)(x - 5); x = 4, 5

Answer

(x + 4)(x + 5); x = - 5, - 4

Answer

Not factorable

Answer

(x - 10)(x + 2); x = -2, 10

Question 8

The solutions of the quadratic equation $$x^2 + 2x - 15 = 0 $$ are

Accepted Answer

x = - 5 or x = 3

Answer

x = - 3 or x = - 5

Answer

x = 5 or x = - 3

Answer

x = 3 or x = 5

Question 9

What property would you use to solve the following? (x - 3)(x + 2) = 0

Accepted Answer

Zero-product property

Answer

Associative property

Answer

Inverse property

Answer

Commutative property

Question 10

Solve for the following quadratic equation $$x^2 + 5x = 6$$

Accepted Answer

x = 1 and x = - 6

Answer

x = - 2 and x = - 3

Answer

x = - 1 and x = 6

Answer

x = 2 and x = 3

Related quizzes

Related quizzes