Anna V.
asked 01/25/22Please help me. Thank you!
If mn=16 and m^2+n^2=68, then (m+n)^2= _____
a. 68
b. 84
c. 100
d. cannot be determined
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1 Expert Answer
Mark M. answered 01/25/22
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
Compare (m + n)2 with m2 + n2
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Sandra K.
expand the (m+n)^2 and you will see that you know all the parts to calculate it.01/31/22