Question

x² - 11x + 30

Factorise ✌✌​

Answer 1

This is a quadratic equation in the form of ax2+bx+c, so you simply factor b into two parts such that their sum is b and product is ac.

x2 − 11x + 30

x2 − 5x − 6x + 30 

(−5×−6 =30and−5 −6= −11)

x(x−5)−6(x−5)

(x−5)(x−6)

That's it

Answer 2

To factorise:-

• x²-11x+30

Solution:-

To factorise this you first need to multiply 30 and x² and check if any factors of 11x adds up to 11x and whose products is 30x²

So, here we got 2 numbers, 5 and 6

5+6=11, and

5×6=30

Here is the solution...

x²-11x+30

=x²-5x-6x+30

=x(x-5)-6(x-5)

=(x-6)(x-5)

Correct Answer:-

• (x-6)(x-5)