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emberferran
24.01.2022 •
Mathematics
Let f(x)=−2x2+3x−6 and g(x)=5−4x−8x2. Which equation shows h( x), where h(x)=f(x)+g(x)?
h(x)=3x2−x−14
h(x)=6x2+7x−11
h(x)=−10x2−x−1
h(x)=−10x2−7x−11
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Ответ:
3rd option
Step-by-step explanation:
(f(x) + g(x)
= - 2x² + 3x - 6 + 5 - 4x - 8x² ← collect like terms
= - 10x² - x - 1
Ответ:
$11
Step-by-step explanation:
20.50- 9.50 = 11
Donald payed $11 for the bag
(9.50 + x = 20.50)