Using factorization, find the roots of the quadratic equation: 5x ² - + =0.

42
Using factorization, find the roots of the quadratic equation: 2z ²+az-a ²=0. 43
Using factorization, find the roots of the quadratic equation: 8x ²-22x-21= 0. 45
Using factorization, find the roots of the quadratic equation: x ²- + =0.
46
Using factorization, find the roots of the quadratic equation: x ²- x- =0.