Question

Simplify 5m - {2n + [3p - (m + 3n - 7p)]}.

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Find the sum of the three expressions and choose the correct answer.

2x2y2 - 7xy + 5y2
8xy - 3y2
x2y2 + 4y2
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Answer 1

1st Problem: 6m + n - 10p

Explanation:

5m - {2n + [3p - (m + 3n - 7p)]}

5m - {2n + [ 3p - m - 3n + 7p]}

5m - {2n + 10p - m - 3n}

5m - {-n + 10p - m}

5m + n - 10p + m

6m + n - 10p

** I don't understand what you are trying to say in the 2nd problem **