Question

Add and subtract the polynomials as indicated. (8a³-2a²-9a+8) + (8a+6) - (-a²-a+4)​

Answer 1

Sum of 5a

2

−3a+2+(−8a

2

+5a+6)

=5a

2

−3a+2−8a

2

+5a+6

Sum=−3a

2

+2a+8

Subtract a

2

+7a−4

=−3a

2

+2a+8−(a

2

+7a−4)

=−3a

2

+2a+8−a

2

−7a+4

=−4a

2

−5a+12