If 9x+2 = 240 + 9x, then x =

9x + 2 = 240 + 9x9x × 92 = 240 + 9xLet 9x = y81y = 240 + y80y = 240y = 9x = 332x = 32x = 1x = = 0.5

Q6 of 59 Page 2

If 9^x⁺² = 240 + 9^x, then x =

9^{x + 2} = 240 + 9^x

9x × 9² = 240 + 9^x

Let 9^x = y

81y = 240 + y

80y = 240

y =

9^x = 3

3^2x = 3

2x = 1

x = = 0.5

The value of x-y^x-y when x = 2 and y = -2 is

The product of the square root of x with the cube root of x is

The seventh root of x divided by the eighth root of x is

The square root of 64 divided by the cube root of 64 is