Math
posted by Kyle on .
u2√u=3. what is u?

change u to x^2, then sqrtu = x
x^22x3=0
(x3)(x+1)=0
x=3, or u= + 9
x=1, or u=+ 1
checking
u=9
92*3=3 checks
u= i
12 does not equal 3, does not check.
posted by Kyle on .
u2√u=3. what is u?
change u to x^2, then sqrtu = x
x^22x3=0
(x3)(x+1)=0
x=3, or u= + 9
x=1, or u=+ 1
checking
u=9
92*3=3 checks
u= i
12 does not equal 3, does not check.