3 times the derivative of x^2
⇥Let's differentiate: ddx(x2)
⇥ⓘ The derivative of x^n is n*x^(n-1): ddx(x2) = 2x
⇥ 2x
Let's evaluate: 3·2x
ⅰ 3·2 = 6
▶Result:   6x