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18-12-2019
Mathematics

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If f(x) = 2х2 + 3 and g(x) = х2 -7, find (f- а)(x).
А. 3х2 – 4
В. 3х2 – 10
с. х2 – 4
D. х2 + 10

If fx 2х2 3 and gx х2 7 find f аx А 3х2 4 В 3х2 10 с х2 4 D х2 10 class=

Respuesta :

NoonElsadig NoonElsadig

21-12-2019

Answer:

C. x^2 -4

Step-by-step explanation:

What you do is subtract the functions as said by

(f-g)(x).

so:

f(x)-g(x)

(2x^2+3) - (x^2 -7)

2x^2 -x^2 +3 - 7= x^2 -4

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