if x minus 3 Y is equals to 3 and x y is equals to 18 find the value of x square + 9 y square
Answers
Answered by
3
Answer:
117
Step-by-step explanation:
square of x-3y is 9
x^2+9y^2 -6xy is 9
xy is 18
x^2+9y^2=9+108
x^2+9y^2=117
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Answered by
0
Answer:
117
Step-by-step explanation:
we have to square the given term x-3y=3 on both the sides.
i.e. ,(x-3y) ^2=9
and after solving (x-3y) ^2
i.e. , x^2+9y^2-6xy=9
and we have to put the value of xy in equation( i.e. ,18)and then solve .
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