Solve (x + 2)(x+3) = (2x+4)

Expand: x2 + 2x + 3x +6 = 2x+4
Take (2x+4) from both sides: x2+3x+2 = 0
Facorise: (x+2)(x+1) = 0
So solutions are x=-2 and x=-1

MT

Related Maths GCSE answers

All answers ▸

Solve 3(2x + 5) = 4 – x


Write 825 as a product of its prime factors.


The are 10 coloured balls in a bag, 4 red, 3 green, 2 orange and 1 yellow. John picks out balls and replaces them one at a time. What is the probability that the first two he picks are red?


I want to buy 1 litre of milk. My options are to either buy 250ml bottles for £1 each or 500ml bottles for £1.50 each. Which is the cheapest way for me to buy 1 litre of milk?