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Scalar Multiplication of a Matrix

Simplify :-3a...

Question

Simplify :
$- 3 a - \{2 a + 5 b - (a - b)\} - 6 a - (3 a - \bar{4 a + b})$

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Solution

$= - 3 a - \{2 a + 5 b - (a - b)\} - 6 a - (3 a - \bar{4 a + b}) = - 3 a - \{2 a + 5 b - (a - b)\} - 6 a - (3 a - 4 a - b) (o n r e m o v i n g t h e b a r) = - 3 a - \{2 a + 5 b - a + b\} - 6 a - 3 a + 4 a + b (o n r e m o v i n g p a r e n t h e s e s) = - 3 a - 2 a - 5 b + a - b - 6 a - 3 a + 4 a + b (o n r e m o v i n g t h e c u r l y b r a c k e t) = - 9 a - 5 b$

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(3 a - 5 b)^{3} - (3 a + 5 b)^{3}

Simplify:
$(a - 2 b + 5 c) (a - b) - (a - b - c) (2 a + 3 c) + (6 a + b) (2 c - 3 a - 5 b)$

Q. Simplify the following algebraic expression.

17 a - 6 a - 3 a - a

(a^{4} - 3 a^{2} + 6 a - 8) - (a^{4} - 10 a + 4 a^{2} + 8)

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