Question

4. Find f(x) + g(x)
f(x)=8x³-7x+4
g(x) = -5x³+x-8

Answer 1

3x^3-6x-4

Explanation:

f(x)+g(x)=(8x^3-7x+4)+(-5x^3+x-8)

--> 8x^3-7x+4+-5x^3+x-8

-->8x^3-7x+4-5x^3+x-8

combine like terms:

8x^3-5x^3=3x^3

-7x+x=-6x

4-8=-4

3x^3-6x-4

*^3 means to the third or an exponent of 3

Answer 2

Explanation:

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