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Expand the expression $\left(x+2\right)^2$ using the square of a binomial: $(a+b)^2=a^2+2ab+b^2$
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$x^{2}+4x+4=4\left(2x+3\right)$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation (x+2)^2=4(2x+3). Expand the expression \left(x+2\right)^2 using the square of a binomial: (a+b)^2=a^2+2ab+b^2. Solve the product 4\left(2x+3\right). Group the terms of the equation by moving the terms that have the variable x to the left side, and those that do not have it to the right side. Subtract the values 12 and -4.