fernandog0303 fernandog0303

15-04-2020
Mathematics

contestada

For f (x) = 2x +1 and g(x) = x2 -7, find (f.g)(x).
O A. 2x3 + x2 -14x - 7
O B. 3x2 +7x -6
O C. 2x2 -13
O D. 2x2 -3573-7

Respuesta :

devishri1977 devishri1977

17-04-2020

Answer:

Step-by-step explanation:

(f.g)(x)=(2x + 1 ) (x² - 7)

= 2x*x² + 2x*(-7) + 1*x² + 1*(-7)

=2x³ - 14x + x² -7

=2x³ + x² - 14x -7

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