2x2-y2
x9/x2 = x9-2 = x7
If the question is, What x 3 equals 15? Then 5 x 3 = 15 If the question is, What is 15 x 3? Then 15 x 3 = 45
x=3 becaus: 6x=x+15 5x=15 (-x) x=3 (divided by 5)
x=5
15x9=135
it equals 54.
2x2-y2
the square root (abbreviated: sqrt) of x9 can be written like this: sqrt(x9) = (x9)(1/2) = x[9*(1/2)] = x(9/2)
x9/x2 = x9-2 = x7
If the question is, What x 3 equals 15? Then 5 x 3 = 15 If the question is, What is 15 x 3? Then 15 x 3 = 45
x9
√x19 = (√x18)(√x) = x9√xBecause:√x18 = x18/2 = x9
x=3 becaus: 6x=x+15 5x=15 (-x) x=3 (divided by 5)
x=5
x = 15 - N.
y = x - 15. We know x = 9.4 y = 9.4 - 15 y = -5.6