How do you solve the inequality $x^2+4<=4x$ and write your answer in interval notation?

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Answer 1 · 2017-02-13T07:02:10

There is only one solution $S={2}$

Let's rewrite and factorise the inequality

$x^2+4<=4x$

$x^2-4x+4<=0$

$(x-2)^2<=0$

There is only one solution,

$x=2$

How do you solve the inequality x^2+4<=4xx^2+4<=4x and write your answer in interval notation?