Question

Please solve this:
10 = u^2 + 2 x 5 x 8.4​

Answer 1

Answer:

10=u^2+(10*8.4)

u^2+84=10

u^2=10-84

u^2=-74

u= square root of -74= -8.6(approx)

u= -8.6

Hope it helps you