x*(-x^ two *sin(x) + six *x*cos(x) + six *sin(x)) = zero
x multiply by ( minus x squared multiply by sinus of (x) plus 6 multiply by x multiply by co sinus of e of (x) plus 6 multiply by sinus of (x)) equally 0
x multiply by ( minus x to the power of two multiply by sinus of (x) plus six multiply by x multiply by co sinus of e of (x) plus six multiply by sinus of (x)) equally zero
x*(-x2*sin(x) + 6*x*cos(x) + 6*sin(x)) = 0
x*-x2*sinx + 6*x*cosx + 6*sinx = 0
x*(-x²*sin(x) + 6*x*cos(x) + 6*sin(x)) = 0
x*(-x to the power of 2*sin(x) + 6*x*cos(x) + 6*sin(x)) = 0