Solving Quadratics

Factor:
x² - 6x + 9

• (x - 3)(x + 3)

• (x - 3) (x - 3)

• (x + 3) (x + 3)

• Prime polynomial

Factor
x² + 4x + 3

• (x - 1)(x - 3)

• (x + 1)(x + 3)

• (x - 1)(x + 3)

• (x + 1)(x - 3)

Factor:
x² - 10x + 9

• (x - 9) (x - 1)

• (x + 3) (x - 3)

• (x + 9) (x - 1)

• Prim polynomial

Factor and find solution(s) for n

• -16

• -2, 4

• -4

• -4, 2

Tags

CCSS.HSA-REI.B.4B

• No real solutions

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring.

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

• x = - 4 and x = - 5

• x = 20 and x = - 9

• x = 4 and x = 5

• x = - 4 and x = 5

Tags

CCSS.HSA-REI.B.4B

• x = - 5 or x = - 7

• x = 5 or x = 7

• x = - 35 or x = - 1

• x = - 9 or x = - 4

Tags

CCSS.HSA-REI.B.4B

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

• Get factored form

• Find two numbers which add to make 6 and multiply to make -13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B