x^(2)-16=0
Take the -16 over to the other side of the equal sign, the -16 will turn +16.
x^(2)=16
Then take the squared root of both sides.
x=4
Chat with our AI personalities
4n2-25 = 0 4n2=25 n2=6.25 n=sqrt(6.25) n= +2.5 or -2.5
16
So u have the function x2-4=0 Now because 4 is a squared number, its square root is 2 (x+2)(x-2)=0
Using the quadratic equation formula: x = 8.42 or x = -1.42
9x squared plus 16 = 0 factored is plus and minus 4/3 i.