Starting with x^2+2x+1=0 use the method of factorising to solve for x.
x2+2x+1=0, (x+1)(x+1)=0, (x+1)2=0. So x=-1
RD
Related Maths GCSE answers
All answers ▸Expanding Brackets: (x+3)(x+4)
How do you find the turning point of a quadratic equation?
What about simultaneous equations?
In a village the number of houses and the number of flats are in the ratio 7 : 4. The number of flats and the number of bungalows are in the ratio 8 : 5 . There are 50 bungalows in the village. How many houses are there in the village?