Question

If f(x) = x1/2 and g(x)= 2x^3 - x1/2 - x, find f(x)-g(x)

Answer 1

Answer: D- f(x) - g(x) = -2
`x^(3)` + 2
`x^(1/2)`

Explanation:

f(x) - g(x) = (
`x^(1/2)` - x) - (2
`x^(3)` -
`x^(1/2)` - x)

f(x) - g(x) =
`x^(1/2)` - x - 2
`x^(3)` +
`x^(1/2)` + x - distribute negative sign

f(x) - g(x) = -2
`x^(3)` + 2
`x^(1/2)` - combine like terms ( -x & +x cancel out)