Subject: high school algebra

Name: Fred

Who is asking: Student

Level: Secondary

Question:

I need a step by step lesson on solving quadratic equations.

Thank you,

Fred for my daughter

Hi Fred,

If your daughter is solving quadratics then she has already learned about factoring. If the quadratic can be factored then this is the easiest way to solve the quadratic. For example if you are to solve

then, factoring the quadratic gives

Thus x=3 or x=-2.

If the quadratic does not factor then you can use the "general quadratic" which says that if

then

.

For example

has solution

.

Cheers

Penny

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