Question

Simplify the following expressions.
1. 3a -b{a - (1 - a)} - b(1 - 2 a)
2. 7(4a -3) - 3a{8 - 2 all +2 a)}​

Answer 1

solution↓

• 3a -b{a - (1 - a)} - b(1 - 2 a)

• 3a-b{a-1+a}-b+2ab

• 3a-b{2a-1}-b+2ab

• 3a-2ab+b-b+2ab

• 3a

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• 7(4a -3) - 3a{8 - 2 a +2 a)}

• 28a-21-3a{8}

• 28a-24a-21

• 4a-21

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learn more

• (__) this call "round bracket" first this

• {___} this call "curly bracket"

• when - multiple then value change pogitive to negative and negative to pogitive.
• ।

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I hope it helps