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juniieb
03.10.2021 •
Mathematics
Given
and
, determine
A. ![45^2+36x-2](/tpl/images/2488/7683/3eaff.png)
B. ![45x^2+6x-5](/tpl/images/2488/7683/bb85d.png)
C. ![9x+6x+2](/tpl/images/2488/7683/140d6.png)
D. ![-9x-12x+10](/tpl/images/2488/7683/51cd0.png)
Solved
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Ответ:
f(x) = 9x² + 7x
g(x) = 2 - x
= 5g(x) - f(x)
= 5(2-x) - (9x² + 7x)
= 10 - 5x - 9x² - 7x
= 10 - 12x - 9x²
= 10 - 12x - 9x²= 9x² - 12x + 10.
D is the correct option.
Ответ:
180 u
Step-by-step explanation: