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Factor the polynomial $x^2+4x$. Add and subtract $\left(\frac{b}{2}\right)^2$, replacing $b$ by it's value $4$
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$x^2+4x+4-4>3$
Learn how to solve problems step by step online. Solve the inequality x^2+4x>3. Factor the polynomial x^2+4x. Add and subtract \left(\frac{b}{2}\right)^2, replacing b by it's value 4. Now, we can factor x^2+4x+4 as a squared binomial of the form \left(x+\frac{b}{2}\right)^2. Calculate the square root of 4. Moving the term -4 to the other side of the inequation with opposite sign.