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$x^{1/2}$

Step-by-step 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)