Question

Describe and justify the methods you used to solve the quadratic equations in parts A and B.

Answer 1

We know that give any pair of real numbers A and B, the following statement will be true:

`A\cdot B=0`

if, and only if

`\begin{gathered} A=0 \\ or \\ B=0 \end{gathered}`

Now, if we factor a quadratic equation into two factors A and B, and use the fact we've just mentioned, we can then equal each factor to zero, solve for x and get the solutions to said quadratic equation.