Question

Subtract 5a²-3ab-7b² from 3a²-ab-2b². please give the answer with process
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Answer 1

Answer:

3a²-ab-2b² - ( 5a²-3ab-7b²)

= 3a²-ab-2b² - 5a² +3ab +7b²

= -2a²+2ab+5b²

Answer 2

$\huge\rm\blue{answer:}$

$\large\bf{{\underline{To~subtract}}:}$

$\sf{5a^{2}-3ab-7b^{2}~{\bf{from}}~3a^{2}-ab-2b^{2}}$

$\sf{: \longrightarrow 3a^{2}-ab-2b^{2}-(5a^{2}-3ab-7b^{2}}$

$\sf{: \longrightarrow 3a^{2}-ab-2b^{2}-5a^{2}+3ab+7b^{2}}$

$\bf{Collecting~the~like~terms~we~get:}$

$\sf{~~~~~~~~~(3a^{2}-5a^{2})+(-ab+3ab)+(7b^{2}-2b^{2})}$

$\sf{: \longrightarrow {\blue{\underline{\boxed{\bf -2a^{2}+2ab+5b^{2} }}}}}$