Simplify the following:
(a) a(a + 7) - 2a(a - 4)
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Answered by
5
Answer:
a ( a + 7 ) - 2a ( a - 4 ) = 0
a² + 7a - 2a² + 8a = 0
15a - a² = 0
a ( 15 - a ) = 0
15 - a = 0
a = 15
Answered by
0
Answer:
a(a+7) -2a(a-4)
=a^2+7a-2a^2+8a
=a^2-2a^2+7a+8a
=a^+15a.
Hope it help you.......
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