3 years ago

What is the sum of the coefficients of the expression 3x4+5x2+x3x4+5x2+x?

Mathematics

2 answers:

Len [333]3 years ago

5 0

add like terms

x^3x^4 = x^7

5x^2 + 5x^2 = 10x^2

you end up with x^7 +3x^4 + 10x^2 +x

Bumek [7]3 years ago

4 0

The answer is 9.
The coefficients are 3,5, and 1 and when you add them up you get 9.

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