1.

If x+y=9 and x-y=3 then the value of 2x2+2y2.

Answer»

Answer:

Step-by-step EXPLANATION:

X+y=9

X-y=3

We should add

2x=12

X=6

Substitute x=6 in x+y=9

6+y=9

Y=3

Given question

2x^2+2y^2

2(6)^2+2(3)^2

2×36+2×9

72+18

90

please TELL me if I did ANYTHING WRONG



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