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A binomial squared (sum) is equal to the square of the first term, plus the double product of the first by the second, plus the square of the second term. In other words: $(a+b)^2=a^2+2ab+b^2$
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$x^2+4x+4+5\left(x+2\right)-6=0$
Learn how to solve problems step by step online. Solve the quadratic equation (x+2)^2+5(x+2)+-6=0. A binomial squared (sum) is equal to the square of the first term, plus the double product of the first by the second, plus the square of the second term. In other words: (a+b)^2=a^2+2ab+b^2. Subtract the values 4 and -6. Multiply the single term 5 by each term of the polynomial \left(x+2\right). Combining like terms 4x and 5x.