Question

simplify (3a²-b +2ab)-(a²+b²+ab)
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Answer 1

Answer:

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Answer 2

$Given \: ( 3a^{2}-b+2ab) - (a^{2}+b^{2}+ab) \\= 3a^{2}-b+2ab - a^{2} - b^{2} - ab \\= 3a^{2} - a^{2} - b + 2ab - ab - b^{2} \\= ( 3 - 1 )a^{2} - b + ( 2 - 1 )ab - b^{2} \\= 2a^{2} - b + ab - b^{2}$

Therefore.,

$\red{ ( 3a^{2}-b+2ab) - (a^{2}+b^{2}+ab)}\\\green { = 2a^{2} - b + ab - b^{2}}$

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