Warm Up on Factoring

factor:x² - 25

• ( x + 5 ) ( x - 5 ) 

• ( x - 5 ) ( x - 5 ) 

• ( x + 5 ) ( x + 5 ) 

• Prime

Factor: 5n+10n²

•  5n(1+5n)

•  5(n+2n)

•  5n(1+2n)

•  10n(1+n)

Factor
x²+12x+35

• (x+5)(x+7)

• (x+4)(x+3)

• (x+7)(x-5)

• Prime

Factor
r² -16r + 60

• (r - 15)(r + 4)

• (r - 6)(r + 10)

• (r - 6)(r - 10)

• (r +30)(r - 2)

What is ALWAYS the first step when factoring?

• Look for the GCF

• Write a, b, and c

• Difference of squares

• Group