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If w2+15=40 what would w be ?
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1 vote
If w2+15=40 what would w be ?

User Sanmeet
by
3.5k points

1 Answer

1 vote


\fbox{w=5 or w=-5}

Subtract 15 from both sides:


w^2+15-15=40-15


w^2=25

Take square root:


w= ±
√(25)


w=5\\or\\w=-5

User Guto Araujo
by
4.4k points
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