solve this equation x^2 -2x=-1
to first think about solving this equation you need to add 1 to both sides producing the equation x^2-2x+1=0 you then need to factorise this equation as it is a quadratic equation (x-1)(x-1) =0 for this to equal 0 one of the x values need to make the bracket equal 0 therefore we can say that x-1=0 which means that x=1 therefore the final answer is x=1
GB
Related Maths GCSE answers
All answers ▸I did a question the other day which expected me to know what cos(30) is without a calculator. How do I work it out?
Find the positive solution to the equation (x^2+9x+18)/(x^2-9)=10
Make x the subject of 5(x-3) = y(4-3x)
A curve (a) has equation, y = x^2 + 3x + 1. A line (b) has equation, y = 2x + 3. Show that the line and the curve intersect at 2 distinct points and find the points of intersection. Do not use a graphical method.