Lf f(x)=5x^3-2 and g(x)=x+1 find (f-g)(x) A.5x^4-2 B.5x^3-x-1 C. 5x^3-x-3 D. 5x^3+1

asked May 4, 2019 68.1k views

2 votes

Lf f(x)=5x^3-2 and g(x)=x+1 find (f-g)(x)

A.5x^4-2
B.5x^3-x-1
C. 5x^3-x-3
D. 5x^3+1

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4 votes

$f(x)=5x^3-2\\\\g(x)=x+1\\\\(f-g)(x)=f(x)-g(x)=(5x^3-2)-(x+1)=5x^3-2-x-1=5x^3-x-3$

Answer: C. 5x^3 - x - 3

CamiEQ answered May 8, 2019

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