Intro to Algebra

Solve for n using cross multiplication.

• 15/3

• 14/3

• 14

• 12

Tags

CCSS.6.EE.B.7

Factor completely.
k² -2k - 24

• (k+4)(k-6)

• (k+4)(k+6)

• (k+6)(k-1)

• (k-4)(k+6)

Factor:
x² + 21x + 108

• (x + 9)(x + 12)

• (x + 3)(x + 27)

• (x + 2)(x + 54)

• (x + 4)(x + 27)

factor:x² - 25

• ( x + 5 ) ( x - 5 ) 

• ( x - 5 ) ( x - 5 ) 

• ( x + 5 ) ( x + 5 ) 

• Prime

Tags

CCSS.HSA.APR.C.4

Factor completely: x²-6x+8

• (x-2)(x-4)

• (x-1)(x-8)

• (x+2)(x+4)

• (x+1)(x+8)

Factor completely: x²+16x+64

• (x+4)(x+16)

• (x-8)(x-8)

• (x+2)(x+32)

• (x+8)(x+8)

Tags

CCSS.HSA.APR.C.4

Factor completely: x²-13x+40

• (x-5)(x-8)

• (x+5)(x+8)

• (x-4)(x-10)

• (x-2)(x-20)

Factor:
x² + 7x - 30

• (x + 10)(x - 7)

• (x - 10)(x + 3)

• (x + 10)(x + 3)

• (x + 10)(x - 3)

Factor
x² + 9x - 36

• (x + 12)(x - 3)

• (x + 9)(x - 4)

• (x - 12)(x + 3)

• (x - 9)(x - 4)

Factor
a² - a - 12

• (a - 4)(a + 3)

• (a + 6)(a - 4)

• (a - 6)(a + 4)

• (a + 4)(a - 3)