Question

$\ \textless \ br /\ \textgreater \ \mathfrak{\huge{\green{\underline{\underline{✰answer \: pls}}}}}$
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Answer 1

$\ \textless \ br /\ \textgreater \ \mathfrak{\huge{\green{\underline{\underline{✰answer \: pls}}}}}$

Answer 2

Question :

$\text{subtract the sum of}\:{12ab-10b^2-18a^2\:and\: 9ab+12b^2+14a^2} \\ \text{from the sum of }ab+2b^2 \: and\: 3b^2-a^2$

Given :

$(ab+2b^2+3b^2-a^2)-(12ab-10b^2-18a^2+9ab+12b^2+14a^2)$

Solution:

$\implies(ab+2b^2+3b^2-a^2)-(12ab-10b^2-18a^2+9ab+12b^2+14a^2)$

$\implies (ab+5b^2-a^2)-(21ab-4a^2+2b^2)$

$\implies ab-21ab+5b^2-2b^2-a^2+4a^2$

$3a^2-20ab+3b^2$