1)㏒₄(x²-15x)=2 2)4㏒₂³+0.5㏒₂⁹

Question

1)㏒₄(x²-15x)=2
2)4㏒₂³+0.5㏒₂⁹

Answer 1

1) 4^2 = x^2-15x
x^2-15x-16=0
D = 225-4*1*(-16) = 289
x1 = (15+17)/ 2 = 16
x2 = (15-17)/2 = -1

2)