Question

Factorise x^2+17x+16

Answer 1

Answer:

(x+1) (x+16)

Step-by-step explanation:

a=1

b=17

c=16

b^2-4ac

17^2-4×1×16

225

Root of 225 = 15

x = -b +or- root of b^-4ac÷2a

= - 17 +or- 15÷2

= - 17 + 15 ÷ 2 , - 17 - 15 ÷2

= - 1 , - 16

Factors of x^2+17x+16 = (x+1) (x+16)