Question

# Add : $3mn,-5mn,8mn,-4mn$

Open in App
Solution

## To add : $3mn,-5mn,8mn,-4mn$AnswerOn combining the like terms and adding them ,we get$=3mn+\left(-5mn\right)+8mn+\left(-4mn\right)\phantom{\rule{0ex}{0ex}}=3mn–5mn+8mn–4mn\phantom{\rule{0ex}{0ex}}=mn\left(3–5+8–4\right)\phantom{\rule{0ex}{0ex}}=mn\left(11–9\right)\phantom{\rule{0ex}{0ex}}=mn\left(2\right)\phantom{\rule{0ex}{0ex}}=2mn$Hence, the addition of $3mn,-5mn,8mn,-4mn$ is $2mn$.

Suggest Corrections
0