Find the value of x which satisfies the following equation 3x^2 +6x+3 = 0

Factorise the equation: (3x+3)(x+1) = 0. Anything multiplied by 0 is equal to 0 therefore (x+1)=0 and (3x+3) = 0. Solve for x: if x+1 =0 you need to subtract 1 from x to work out what x is (do the opposite of the sum) therefore x = -1Now do the same to the other equation: 3x +3 = 0. Subtract 3 and then divide by 3. x = -1. Therefore the final value of x is -1.

AS
Answered by Aiysha S. Maths tutor

3199 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find the minimum value of the quadratic 3x^2-8x+1.


Prove that the product of 3 consecutive integers is divisible by 6


Solve x^2+4x-5=0


Johnny take 4 hours 50 minutes to drive 213 miles to Manchester. He then takes the train to Liverpool. Liverpool is 37 miles from Manchester and the train travels at 90mph. Calculate Johnny's average speed for his total journey in mph.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning