Factoring x^2 + bx + c and Factoring ax^2 + bx + c

Factor:
 b² + 8b + 7

• (b + 4)(b + 3)
• (b + 6)(b + 1)
• (b + 7)(b +1)
• prime

Factor
a² - a - 12

• (a - 4)(a + 3)
• (a + 6)(a - 4)
• (a - 6)(a + 4)
• (a + 4)(a - 3)

 $5x^2+2x-7$  

•  $\left(5x+7\right)\left(x-1\right)$  

•  $\left(5x-7\right)\left(x+1\right)$ 

•  $\left(5x+1\right)\left(x-7\right)$  

•  $\left(5x-1\right)\left(x+7\right)$  

  $15x^2+4x-4$  

• PRIME

•  $\left(3x+2\right)\left(5x-2\right)$  

•  $\left(x-1\right)\left(15x+4\right)$  

•  $\left(3x-1\right)\left(5x+4\right)$  

 $5x^2+2x-7$  

•  $\left(5x+7\right)\left(x-1\right)$  

•  $\left(5x-7\right)\left(x+1\right)$ 

•  $\left(5x+1\right)\left(x-7\right)$  

•  $\left(5x-1\right)\left(x+7\right)$  

Factor
k²+7x+10

• (k+2)(k+5)
• (k-2)(k-5)
• (k+10)(k+4)
• (k+2)(k-5)

Factor completely:

y² - 7y + 12

• (y - 3) (y - 4)

• (y + 3) (y - 4)

• (y + 3) (y + 4)

• (y - 2) (y - 6)

Factor

x² - 2x - 15

• (x+5)(x-3)

• (x-5)(x-3)

• (x-5)(x+3)

• (x+5)(x+3)

Factor
x² + 9x - 36

• (x + 12)(x - 3)
• (x + 9)(x - 4)
• (x - 12)(x + 3)
• (x - 9)(x - 4)

Factor  $x²+5x-6$  

•  $(x-6)(x-1)$  

•  $(x-3)(x+2)$  

•  $(x+6)(x-1)$  

•  $(x+3)(x+2)$