simplify the following expressions.
(a) (a^3-5a^2+8a-8)-(-2a-6+3a^3-2a^2)+(2+3a-4a^2+6a^3) . class 7th ,subject maths
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4a³-7a²-7a
STEP BY STEP BY EXPLAINATION
=a³-5a²+8a-8+2a+6-3a³+2a²+2+3a-4a²+6a³
=a³-3a³+6a³-5a²+2a²-4a²+8a+2a+3a-8+6+2
=4a³-7a²-7a-0
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