Question

Expand 3y(y + 2x) + (y + 5x) (y - 9x)

Answer 1

Answer:

refer below

Step-by-step explanation:

3y(y+2x)+(y+5x)(y-9x)

=(3y × y)+( 3y×2y) + (y × y- 9x) + (5x × y-9x)

= 3y^+6y^+y^- 9xy+ 5 xy+ 45 x ^

= 10y^-4xy + 45x