Question

Factorise:
1. x² + 8x +16
4. 9+ 6z+z
7. 36a? +36a +9
4942 +84 ab +36b2​

Answer 1

Answer:

1. x²+8x+16=0

x²+4x+4x+16=0

x(x+4) +4(x+4)= 0

(x+4) (x+4) = 0

x+4= 0 , x+4 = 0

x= -4 ,, x= -4

i think other question is wrong ..