Solve x^2+6x+5=0

Use factorisation to solve this. You must find a pair of numbers that add to make 6 and multiply to make 5. In this question, 5 and 1 add to make 6 and they also multiply to make 5. So the factorised equation here is (x+5)(x+1)=0. By setting each bracket to be 0, we can see that x can be equal to -5 (when (x=1)=0, x+5=0 so x=-5) or -1 (when (x=5)=0, x+1=0 so x=-1)

Answered by Carmen L. Maths tutor

2506 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

There are 40 counters in a bag. 13 are red, 20% are green and the rest are yellow. What proportion of counters are yellow?


How do surds relate to powers and roots?


Solve, by method of substitution, the simultaneous equations: 5x+y=22 2x+y=10


Square ABCD has length (x+3)cm and area 10cm^2. Show x^2 + 6x = 1


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