Question

Complete the value of 9 x square + 4 y square ifxy is equal to 6 and 3 x +2 y is equal to 12

Answer 1

Answer:

72

Step-by-step explanation:

9x^2 + 4y^2

xy=6

3x+2y=12

3x+2(6/x)=12

3x+12/x=12

3x^2+12=12x

x^2-4x+4=0

x =2

y=6/2=3

9(2)^2+4(3)^2=9(4)+4(9)=36+36=72

Answer 2

Answer:

72

Step-by-step explanation:

9x² + 4y²

( 3x + 2y )² - 12xy

Given,

3x+2y=12

xy=6

( 12 )² - 12(6)

144 - 72

= 72

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