SOLUTION: I cannot figure this out. I tried systems of equations, both substitution and elimination, but could not get it to solve. Thanks If cd=4 and C^2+d^2=10, what is (c+d)^2

SOLUTION: I cannot figure this out. I tried systems of equations, both substitution and elimination, but could not get it to solve. Thanks If cd=4 and C^2+d^2=10, what is (c+d)^2

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Question 142317: I cannot figure this out. I tried systems of equations, both substitution and elimination, but could not get it to solve. Thanks
If cd=4 and C^2+d^2=10, what is (c+d)^2
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!

cd=4 implies 2cd=8
now substitute:

.

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