4/5 (4 + f) = 4(4+f)/5
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what is the sum of
4(f2 - g) + (f2 + 2g) which can be expanded and simplified to 5f2 - 2g
A, e, b, f#, c#
You just write that as "f + 6". You can't simplify that any more, unless you know how much "f" is.
The sum of a cubic and a quadratic is still a cubic.(ax3+ bx2+ cx + d) + (ex2+ fx + g) = ax3+ (b+e)x2+ (c+f)x + (d+g)Therefore, the result will always be different to a polynomial of degree 4.