Factorise x^2 + 10x + 24

First, we need to find two numbers which add together to make 10 such as 2 and 8, 6 and 4 or 7 and 3, listing these combinations. Next, we need to do the same but finding combinations of numbers which multiply to make 24 such as 12 and 2, 8 and 3 or 6 and 4. We can see that there is an exact match of two combinations of numbers that add to make 10 and multiply to make 24, 6 and 4 and therefore, we can use these in our two brackets.To set out the factorisation, we are going to use two brackets as the equation is a quadratic and the two numbers which we have just found. Therefore the answer is (x + 6)(x + 4)

Answered by Phoebe F. Maths tutor

3085 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Express the number 252 in terms of its prime factors


f(x) = 5 – x and g(x) = 3x + 7 (a) Simplify f(2x) + g(x – 1)


How do you check if a graph ever touches the x-axis?


Clare buys some shares for $50x. Later, she sells the shares for $(600 + 5x). She makes a profit of x% (a) Show that x^2 + 90x − 1200 = 0


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences