Question

(ix) y=(9x3 - 8x + 7) (3x5 + 5)​

Answer 1

y=(27-8x+7)(15+5)

=(34-8x) (20)

=680-160x

=40(17x-4)

Hope this will help you...

Answer 2

Y=(27-8x+7) (15+5)
Y=(34-8x) (20)
Y=680-160x
Y=40(17x-4)