This question has been answered on multiple times. it is not a
if c(x) = 4x – 2 and d(x) = x2 + 5x, what is (c·d)(x)?

a) 4x^3 + 18x^2 – 10x
b) x^2 + 9x – 2
c) 16x^2 + 4x – 6
d) 4x^2 + 20x – 2

again, not a.

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Ответ:

janiewalker17

16.01.2021

Mathematics

Step-by-step explanation:

Length of 1 piece: x

Side of this square: x/4

Length of the second piece: 10 - x

Side of this square: (10 - x)/4

Combined area:

(x/4)² + [(10 - x)/4]²

x²/16 + (100 - 20x + x²)/16

[x² + 100 - 20x + x²]/16

[2x² - 20x + 100]/16

(x² - 10x + 50)/8

⅛(x² - 10x + 50)

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This question has been answered on multiple times. *it is not a* if c(x) = 4x – 2 and d(x) = x2 + 5x, what is (c·d)(x)? a) 4x^3 + 18x^2 – 10x b) x^2 + 9x – 2 c) 16x^2 + 4x – 6 d) 4x^2 + 20x – 2 again, not a.