Question

What will be the value of x and y according to the given image? ​

Answer 1

Answer:

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Answer 2

Given - 2x+3y=8 and xy=4

To find -The value of 4x²+9y²

Solution - (2x+3y)=8 [Given]

Squaring both sides,

=> (2x+3y)²=8²

=>(2x)²+(3y)²+2×2x×3y=64

=>4x²+9y²+12xy=64

=>4x²+9y²+12×4=64

=> 4x²+9y²+48=64

=>4x²+9y²=64-48

=> 4x²+9y²=16

Therefore the value of 4x²+9y² is 16