Question

For what value of X, 2×2+2×X+0.3×0.3 is a perfect square of 2.3 ?

Answer 1

Hi, friends...

2.3× 2.3= 5.29
then,
put X= 0.6
*2×2=4,*2×0.6=1.2,*0.3×0.3=0.09
= 4+1.2+0.09
= 5.29
then,
[ X = 0.6 ]