Question

ii) Factorize:
^2 − 16​

Answer 1

X2 _16

1) use the sum _product pattern

X2 _16

X2+4x _4x_16

2)common factor from the two Paris

X2+4x_4x_16

X(X+4)_4(X+4)

3) rewrite infactored from ^2_16

X(x_4) (X+4)

solutions

(x_4) (X +4)