four *(four *x^ two - one)*exp(- two *x^ two) = zero
4 multiply by (4 multiply by x squared minus 1) multiply by exponent of ( minus 2 multiply by x squared ) equally 0
four multiply by (four multiply by x to the power of two minus one) multiply by exponent of ( minus two multiply by x to the power of two) equally zero
4*(4*x2 - 1)*exp(-2*x2) = 0
4*4*x2 - 1*exp-2*x2 = 0
4*(4*x² - 1)*exp(-2*x²) = 0
4*(4*x to the power of 2 - 1)*exp(-2*x to the power of 2) = 0
