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When multiplying two powers that have the same base ($x$), you can add the exponents
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$3+3x=2\left(x^2-2\right)-4$
Learn how to solve problems step by step online. Solve the equation 3+3x=2(xx-2)-4. When multiplying two powers that have the same base (x), you can add the exponents. Multiply the single term 2 by each term of the polynomial \left(x^2-2\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 -8 and -3.