Question

Which polynomial represents the sum: (−x3+3x2+3)+(3x2+x+4)?

Answer 1

Solution:

-x³+3x²+3+(3x²+x+4)

= -x³+3x²+3+3x²+x+4

=-x³+3x²+3x²+x+3+4

= -x³+(3+3)x²+x+7

= -x³+6x²+x+7

Therefore,

-x³+3x²+3+(3x²+x+4)

= -x³+6x²+x+7

•••

Answer 2

Hey.

Refer the below attachment !

Thanks.