SOLUTION: If ( x+3y)^2=x^2+9y^2+42 what is the value of x^2y^2

SOLUTION: If ( x+3y)^2=x^2+9y^2+42 what is the value of x^2y^2

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Question 1145882: If ( x+3y)^2=x^2+9y^2+42 what is the value of x^2y^2
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
49
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Expand (x+3y)^2 then compare term by term with x^2+42+9y^2 and it will be clear.
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