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Quick help, please. Given f(x) =4x^2-9 and g(x) = 2x+3, find each function or value. 1. (f-g)(4) 2. (fg)(5)

Quick help, please. Given f(x) =4x^2-9 and g(x) = 2x+3, find each function or value. 1. (f-g)(4) 2. (fg)(5)
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4 votes
Quick help, please.

Given f(x) =4x^2-9 and g(x) = 2x+3, find each function or value.

1. (f-g)(4) 2. (fg)(5)

User Inkychris
by
7.6k points

1 Answer

2 votes
(f-g)(4) = 4*4²-9-2*4-3=44
(fg)(5)=91*13=1183
User Batjko
by
8.3k points
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