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Christopher Vazquez
Mathematics
8 June, 10:15
What is the product of (a - 1) and (2a + 2) ?
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Brynn Whitney
8 June, 10:30
0
Multiply each term in the first set of parenthesis by each term in the second set, then simply by combining like terms:
(a-1) (2a+2)
a*2a = 2a^2
a*2 = 2a
-1*2a = - 2a
-1*2 = - 2
Now combine:
2a^2 + 2a - 2a - 2
= 2a^2 - 2
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Cade May
8 June, 10:43
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2a²-2
Step-by-step explanation:
(a-1) (2a+2)
a (2a+2) - 1 (2a+2)
2a²+2a-2a-2
2a²-2
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