Hello there, I've got a quadratic equation. I'm supposed to solve it by factorising but it's already factorized.

Can you help me?

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- September 21st 2011, 01:08 PMJibblyJabblyQuadratic Equations
Hello there, I've got a quadratic equation. I'm supposed to solve it by factorising but it's already factorized.

Can you help me? - September 21st 2011, 01:15 PMSironRe: Quadratic Equations
Use the fact that

- September 21st 2011, 03:06 PMJibblyJabblyRe: Quadratic Equations
For

Do I expand everything on the left hand side then do the same on the the Right hand side then move the right hand side to the left hand side to make it = 0? - September 21st 2011, 03:23 PMpickslidesRe: Quadratic Equations
Yep have a go at that.

- September 21st 2011, 04:53 PMJibblyJabblyRe: Quadratic Equations
After a long complex situation I get

Which I can't do as nothing multiplys to make 18 thats add to 10 - September 21st 2011, 04:57 PMpickslidesRe: Quadratic Equations
For

- September 21st 2011, 05:03 PMJibblyJabblyRe: Quadratic Equations
But I've got to do via factorisation. Don't think I can factorise the above. Think I done something wrong.

- September 21st 2011, 05:09 PMpickslidesRe: Quadratic Equations
Complete the square then.

- September 21st 2011, 05:11 PMskeeterRe: Quadratic Equations
- September 21st 2011, 05:26 PMJibblyJabblyRe: Quadratic Equations
- September 21st 2011, 05:46 PMpickslidesRe: Quadratic Equations
Better check my workings but,