Question

simply the following​

Answer 1

Answer:

1) (3x-5y)(4x+7y)

=3x(4x+7y)-5y(4x+7y)

=12x²+21xy-20xy-35y²

2) Value of x=-1, y=2 and z=-2

put these value in the equation..

x³+y³+z³

(-1)³+(2)³+(-2)³

-1+8-8

-1

3)8x³+4x²-5x+5

-. 4x3-2x²+7x+2

=. 4x³+2x²+2x+7

4)-1x²+1xy-5y

5) Divide 3a²-7a+2 by a-2

3a²-7a+2÷ a-2

3a-1

Hope it helps..

.!!!!

BYE MATE :)))