- two *(two *x^ two *cos(x^ two + one) + sin(x^ two + one)) = zero
minus 2 multiply by (2 multiply by x squared multiply by co sinus of e of (x squared plus 1) plus sinus of (x squared plus 1)) equally 0
minus two multiply by (two multiply by x to the power of two multiply by co sinus of e of (x to the power of two plus one) plus sinus of (x to the power of two plus one)) equally zero
-2*(2*x2*cos(x2 + 1) + sin(x2 + 1)) = 0
-2*2*x2*cosx2 + 1 + sinx2 + 1 = 0
-2*(2*x²*cos(x² + 1) + sin(x² + 1)) = 0
-2*(2*x to the power of 2*cos(x to the power of 2 + 1) + sin(x to the power of 2 + 1)) = 0