Question

x2-36+320 factorise​

Answer 1

Answer:

x2-20x-16x+320=0

x(x-20) -16(x-20) =0

(x-20) (x-16) =0

x=20or 16

Answer 2

Answer:

x²-36x+320

=x² -20x-16x+320

=x(x-20)-16(x-20)

=(x-20)(x-16)