Question

If f(x)= 4x2-3 and g(x) = x+1, find (f - g)(x).

A. x- 4x^2 - 2
B. 4x^2 - x - 2
C. 4x^3 - 3
D. 4x^2 - x - 4​

Answer 1

Answer is option d)

`4 {x}^(2) - x - 4 \:`

Explanation:

`given \: \: f(x) = 4 {x}^(2) - 3 \\ and \: \: \: g(x) = x + 1 \\( f - g )(x) = 4 {x}^(2) - 3 - (x + 1) \\ = 4 {x}^(2) - 3 - x - 1 \\ = 4 {x}^(2) - x - 4 \\ hence \: the \: answer \: is \: option \: d \:`

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