mavii

Factorise \(x^2 + 7x + 10\). To factorise this expression ... find two numbers that have a product of +11 and a sum of -12. \(11 + 1\) will add up to +12, not -12, so the numbers must be -11 ...

Factorise \(x^2 + 7x + 10\). To factorise this expression ... find two numbers that have a product of +11 and a sum of -12. \(11 + 1\) will add up to +12, not -12, so the numbers must be -11 ...