Problema Solution

Add the following polynomials:

(-x2 + 6x + 8) + (-9x3 – 7x2 – 8)

Answer provided by our tutors

(-x^2 +6x +8) + (-9x^3 +7x^2 +8)

=-9x^3 -x^2+7x^2+6x +8+8

=-9x^3+6x^2+6x+16