Question

x2-8x+16. factorise this​

Answer 1

$\implies\sf{ {x}^{2} - 8x + 16 }$

$\implies\sf{ {x}^{2} - 4x - 4x + 16}$

$\implies\sf{x(x - 4) - 4(x - 4)}$

$\implies \boxed{\sf {(x - 4)(x - 4)}} \: \purple\bigstar$

$\sf \purple{How \: to \: Factorise \: ?}$

• At first we have to multiply x² and 16 so we will get a result 16x².

• When we add or subtract it we get can 16x².

• Then we have to take common from both sides.

• At last we have to write the result like (x - 4) (x - 4)