Exercise
$\left(3x+4\right)^2-\left(4-3x\right)^2$
Step-by-step Solution
Learn how to solve problems step by step online. Expand the expression (3x+4)^2-(4-3x)^2. A binomial squared (difference) is equal to the square of the first term, minus 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. Simplify the product -(16-24x+\left(-3x\right)^2). Simplify the product -(-24x+\left(-3x\right)^2). Expand the expression \left(3x+4\right)^2 using the square of a binomial.
Expand the expression (3x+4)^2-(4-3x)^2
Final answer to the exercise
$9x^{2}+48x-\left(-3x\right)^2$