Verified Answer :

hint:  \(\bf (7a-a^2)-(-4 + 3a^2)\implies 7a - a^2+4-3a^2 \\ \quad \\ 7a \boxed{-3a^2- a^2}+4\impliedby \textit{add like-terms}\)

Answer:

\(-4a^2+7a+4\)

Step-by-step explanation:

We are asked to take \(-4+3a^2\) from \(7a-a^2\).

Taking \(-4+3a^2\) from \(7a-a^2\) means subtracting \(-4+3a^2\) from \(7a-a^2\) as:

\(7a-a^2-(-4+3a^2)\)

Use distributive property:

\(7a-a^2+4-3a^2\)

Combine like terms:

\(-3a^2-a^2+7a+4\)

\(-4a^2+7a+4\)

Therefore, our required expression would be \(-4a^2+7a+4\).

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