² =0.

24
Using factorization, find the roots of the quadratic equation: y ²-3= 0
[Hint: 3 =( ) ² ].
25
Using factorization, find the roots of the quadratic equation: a ²z ²-b ²=0.
27
Using factorization, find the roots of the quadratic equation: 5z ²-30= 0.
28

Using factorization, find the roots of the quadratic equation: ax ² -2abx= 0.