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Let f(x) = x^3 + 3x ^2 + 4x - 7 and g(x) = -7x^4 + 5x^3 +x^2 - 7. What is the coefficient of x^3 in the sum f(x) + g(x)?

Guest Dec 4, 2014

Best Answer 

 #1
avatar+93909 
+5

$$1x^3+5x^3=6x^3$$

The coefficient is 6

Melody  Dec 4, 2014
 #1
avatar+93909 
+5
Best Answer

$$1x^3+5x^3=6x^3$$

The coefficient is 6

Melody  Dec 4, 2014

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