Final Answer
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When multiplying two powers that have the same base ($x+y+z$), you can add the exponents
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$\left(x+y+z\right)^2$
Learn how to solve special products problems step by step online. Solve the product (x+yz)(x+yz). When multiplying two powers that have the same base (x+y+z), you can add the exponents. 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. Expand \left(y+z\right)^2. Multiply the single term 2x by each term of the polynomial \left(y+z\right).