Question

If 2x+3y=8 and ry=2, find the
& Nalue of a 4re²+
4 rc² +9y².​

Answer 1

Answer:

2×+3y=8 and xy=2

so using identity (a+b)2=a2+b2+2ab

(2×+3y)2×(2×)2+(3y)2+(2×)(3y)

(8)2=4×2+9y2+2*2*2*3

64=4×2+9y2+24

64-24=4×2+9y2

40=4×2+9v2answer

Step-by-step explanation:

Hope it help you ✌✌✌