skboy1050
28.04.2021 •
Mathematics
Find the area of composite
A.228
B.328
C.214
D.138
Solved
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Ответ:
18x² - 9x - 2
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
3x(6x + 1) - 2(6x + 1) ← distribute both parenthesis
= 18x² + 3x - 12x - 2 ← collect like terms
= 18x² - 9x - 2