Question

12xsquare minus 4underroot15x+5=0

Answer 1

solution

12x²-4√15x+5 = 0

method 1:-(by formula)

=> x= [4√15±√ ( 4√15)²-4×12×5) ] / 2×12

=>. x= [ 4√15±√ ( 240-240)] / 24

=> x= 4√15/24

x = (√15)/6

answer = (√15) / 6

method 2:-( by factor)

dividing both sides by 12

x²-(√15/3)x+5/12= 0

x²- ( √15/6) x- (√15/6)x +5/12=0

x ( x- √15/6) -√15/6( x- √15/6)=0

( x- √15/6) ( x- √15/6)= 0

this gives

x= (√15) /6

I hope you fill better