solve the inequality x^2-4x+4>0
x2 -4x+4>0 => (x-2)(x-2)>0. We can illustrate this line on a graph showing a quadratic whose vertex is at (2,0). Therefore, the answer to our inequality is x<2,x>2 (but x does not equal 2) for all real numbers x.
JA
Related Maths GCSE answers
All answers ▸explain and show how quadratic equations are solved
Prove that (3n+1)²-(3n-1)² is a multiple of 4 taking into account that n is a positive integer value
2476 people are at a football match. The ratio of men to women is 3 : 1. How many more men than women are at the match?
Find the values of x and y when 3x+4y=18 and 4x+2y=14