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Factor the polynomial $x^2+20x$. Add and subtract $\left(\frac{b}{2}\right)^2$, replacing $b$ by it's value $20$
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$x^2+20x+100-100>2400$
Learn how to solve inequalities problems step by step online. Solve the inequality x^2+20x>2400. Factor the polynomial x^2+20x. Add and subtract \left(\frac{b}{2}\right)^2, replacing b by it's value 20. Now, we can factor x^2+20x+100 as a squared binomial of the form \left(x+\frac{b}{2}\right)^2. Calculate the square root of 100. Moving the term -100 to the other side of the inequation with opposite sign.