*The Quadratic Formula can be used to
solve any Quadratic equation. But, students must know how to use it; they must
know values of

*a, b, & c*; know their directed numbers; and know how to simplify surds.
Showing posts with label **factorising**. Show all posts

Showing posts with label **factorising**. Show all posts

*The Quadratic Formula can be used to
solve any Quadratic equation. But, students must know how to use it; they must
know values of* a, b, & c*; know their directed numbers; and know how to
simplify surds.

It is a pity to see many students shying away from enjoying
maths. Students often find certain topics like Algebra challenging. I’d like to identify the
difference between __simple and complex quadratic equations __and solve them as
examples. The questions are real GCSE (UK/Edexcel) exam questions.

To solve a quadratic equation (equation of the
highest power of 2), one MUST first know how to factorise the equation.

Factorising and solving simple quadratic expressions (and
equations) like *x*^{2} – 4 (difference of 2 squares) and *x*^{2}
+ 4x + 4 can be easy. But such this work, introduced in Grade 9 or
10, often paves way for harder questions in later years. So a proper understanding
is vital.

If this PDF file does not open, click on '**Open in new window**' arrow. (Here ▼)

If this PDF file does not open, click on '**Open in new window**' arrow. (Here ▼)