alyssafernandez205 alyssafernandez205

25-02-2020
Mathematics

contestada

f(x)= 3x - 4x2 +6x and g(x)= 5x +2x2 – 3x. What is f(x) g(x)?

A)-2x - 6x² +9x
B)- 2x² - 6x² – 3x
C)2x²+6x²+32
D)8x2 - 6x2-9x

Respuesta :

bhuvna789456 bhuvna789456

25-02-2020

f(x)g(x) = 9x² + 10x - 16

Step-by-step explanation:

Step 1:

Given f(x) = 3x - 4 × 2 + 6x and g(x) = 5x + 2 × 2 - 3x

f(x) = 9x - 8

g(x) = 2x + 4

f(x)g(x) = (9x - 8)(2x + 4)

= 18x² + 36x - 16x -32

= 18x² + 20x - 32

= 9x² + 10x - 16

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