Question

•14. Multiply x2 + 7x -8 by -2y,​

Answer 1

Answer:

x2+7x-8by-2y

= - 2x²y-14xy+16y

Answer 2

Answer:

= x² + 7x - 8 × -2y

= (x² + 7x - 8 ) -2y

= [ ( X² × -2y )+ (7x × -2y )- (8 × -2y ) ]

= -2yx² -14xy + 16y