Answer :
Step-by-step explanation:
(4y-y)(9+4x+3y)
36y+16xy+12y^2-9y-4xy-3y^2
collect like terms
36y-9y+16xy-4xy+12y^2-3y^2
=27y +12xy+9y^2
(4y-y)x(9+4x+3y)
Subtract the terms 3yx(9+4x+3y).
Add the terms 3yx(4x+3y+9).
Apply the distributive property
3yx4x+3yx3y+3yx9.
Multiply the terms 12xy+3yx3y+3yx9.
Multiply the terms 12xy+9ysq+3yx9.
Solution = 12xy+9ysq+27y..............
(Note I put sq because my phone don’t allow 2 on a y)
Subtract the terms 3yx(9+4x+3y).
Add the terms 3yx(4x+3y+9).
Apply the distributive property
3yx4x+3yx3y+3yx9.
Multiply the terms 12xy+3yx3y+3yx9.
Multiply the terms 12xy+9ysq+3yx9.
Solution = 12xy+9ysq+27y..............
(Note I put sq because my phone don’t allow 2 on a y)