Quadratic Solving Zero

Solve for the values of x:

(2x + 5)(5x - 2) = 0

• x= -5/2, x= -2/5

• x= -5/2, x= 2/5

• x= 5/2, x= 2/5

• x= 5/2, x= -2/5

Tags

CCSS.HSA-REI.B.4B

What are the values of x when (2x+5)(x-6)=0?

• -6, 5/2

• -5/2, 6

• 6, 2

• 5, -6

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Convert x²+6x+9 to factored form and identify the solution.

• (x+3)(x+3); x=-3

• (x+4)(x+5); x=-4, -5

• (x-3)(x-3); x=3

• Not factorable

Tags

CCSS.HSA-REI.B.4B

Solve Using the method of your choice.

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Convert x² - 9x + 20 to factored form and solve.

• (x-10)(x+2); x = -2, 10

• (x+4)(x+5); x = -5, -4

• (x-4)(x-5); x = 4, 5

• Not factorable

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

n² - 2n = 0

• n = 2 and 0

• n = -2 and 0

• n = 2

• n = 0

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+x+3=0 are

• x = 1 or x = 3

• x = -1 or x = -3

• x = -3 or x = 1

• No solutions

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve by factoring!

• -2, 4

• -8

• ±8

• No real solution

Tags

CCSS.HSA-REI.B.4B