Factoring Worksheet1 Solution13





In this page factoring worksheet1 solution13 we are going to see solution of some practice questions from factoring worksheet1.

Question 9:

Solve by using quadratic formula a² x² + (a² - b²) x - b² = 0

Now we are going to compare the given equation by ax² + b x + c = 0

x = -b ± √(b² – 4 a c)/2a

a = a²         b = a² - b²      c = - b²

x = -( a² - b²) ± √( a² - b²)² – 4 (a²)( -b²)/2a²

x = -( a² - b²) ± √( a⁴+ b⁴ – 2 a² b² + 4a² b²)/2a²

x = -( a² - b²) ± √( a⁴ + b⁴ + 2 a² b²)/2a²

x = -( a² - b²) ± √( a² + b²) 2/2a²

x = - a2 + b2 ± ( a² + b²)/2a²

x = (- a² + b² +  a² + b²)/2a²              x = (- a² + b² -  a² - b²)/2a²

x = 2 b²/2a²                                   x = (-2 a² )/2a²

x = b²/a²                                        x = -1

factoring worksheet1 solution13