Question

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

Answer 1

Answer:

given

1. 3x+2y=12
2. 2x=12-3y
3. x=12-3y/2.....(i)
4. x*y=6
5. x=6y......(ii)
6. therefore 6y=12/2 -3y/2
7. 12y=12_3y
8. 12y-3y=12
9. 9y=12
10. y=12/9
11. or y=4/3
12. putting the value of y in (ii) we get
13. x×4/3=6
14. or4x=18
15. x=18/4
16. x=9/2

now putting the value of xa ne y in the given equation

We get

9*9/2*9/2+4*4/3*4/3

179/4+64/9

=1611/36+384/36

1995/36

Step-by-step explanation:

find out the values of x and y by solving the given equation then put the values of x and y in the required equation

a tip of advice this types of sum with big values don't come to your exam unless it is of !ore than 50marks