Solving quadratics

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

Solve by taking square roots:
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Tags

CCSS.HSA-REI.B.4B

Find the zeros

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1
• (x + 1)(x - 3); x=-1, x=3
• (x + 2)(x - 1); x=-2, x=1
• (x - 1)(x + 3); x=1, x=-3

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

What are the zeros to the equation

x² - 2x = 8?

• x = 2 or x = -4

• x = 1 or x = -8

• x = 4 or x = -2

• x = 8 or x = -1

Tags

CCSS.HSA-REI.B.4B

Solve by square roots (SADMEP)
x² - 64 = 0

• 64
• 8
• 8 or -8
• 1 or -64

Tags

CCSS.HSA-REI.B.4B

Solve the following equation using the quadratic formula:
2x² - 5x - 7 = 0

• {-7/2, 1}
• {7/2, -1}
• {-7/2, -1}
• {3, -1}

Tags

CCSS.HSA-REI.B.4B

Solve

6x²-x-2=0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -3, 4

• x= - 4, 3

Tags

CCSS.HSA-REI.B.4B