Question

Factorize y2 + 7y – 144

Answer 1

= y² + 16y - 9y - 144
= y(y+16) - 9(y-16)
= (y+16)(y-9)

Answer 2

Hey there,
Factors for 144 is 16 and 9
y2 + 16y - 9y - 144 = 0
y ( y + 16) -9 ( y + 16) = 0
(y + 16) ( y -9) = 0

Hope it helps..