- two *x^ two /(x^ two - one * nine)^ two + one /(x^ two - one * nine) = zero
minus 2 multiply by x squared divide by (x squared minus 1 multiply by 9) squared plus 1 divide by (x squared minus 1 multiply by 9) equally 0
minus two multiply by x to the power of two divide by (x to the power of two minus one multiply by nine) to the power of two plus one divide by (x to the power of two minus one multiply by nine) equally zero
-2*x2/(x2 - 1*9)2 + 1/(x2 - 1*9) = 0
-2*x2/x2 - 1*92 + 1/x2 - 1*9 = 0
-2*x²/(x² - 1*9)² + 1/(x² - 1*9) = 0
-2*x to the power of 2/(x to the power of 2 - 1*9) to the power of 2 + 1/(x to the power of 2 - 1*9) = 0
-2x^2/(x^2 - 19)^2 + 1/(x^2 - 19) = 0
-2x2/(x2 - 19)2 + 1/(x2 - 19) = 0
-2x2/x2 - 192 + 1/x2 - 19 = 0
-2x^2/x^2 - 19^2 + 1/x^2 - 19 = 0
-2*x^2 divide by (x^2 - 1*9)^2 + 1 divide by (x^2 - 1*9) = 0