3a(a + 4) – 2a + 7 =
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Answered by
0
Answer:
3a*2+10a+7
Step-by-step explanation:
by multiple
Answered by
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Step-by-step explanation:
3a(a + 4) + -2a + 7 = 0
Reorder the terms:
3a(4 + a) + -2a + 7 = 0
(4 * 3a + a * 3a) + -2a + 7 = 0
(12a + 3a2) + -2a + 7 = 0
Reorder the terms:
7 + 12a + -2a + 3a2 = 0
Combine like terms: 12a + -2a = 10a
7 + 10a + 3a2 = 0
Solving
7 + 10a + 3a2 = 0
Solving for variable 'a'.
Factor a trinomial.
(7 + 3a)(1 + a) = 0
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