You combined terms correctly, but this question asks for adding terms, not multiply terms. If the question asked for multiplying terms the example might be given as (2)(x)(2)(x)(2)(x) and so on. The answer to this would have been (2^3)(x^3). Here we need to use addition. We group the x’s with each other and the 2’s with each other. When doing so we will not get an exponent. It is not possible to add terms together and get exponents. So x+x+x+x will equal 4x. Try adding all of the x terms together and then all of the constant terms. Remember there is a 1 in front of each x. 1x+1x+1x…
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You combined terms correctly, but this question asks for adding terms, not multiply terms. If the question asked for multiplying terms the example might be given as (2)(x)(2)(x)(2)(x) and so on. The answer to this would have been (2^3)(x^3). Here we need to use addition. We group the x’s with each other and the 2’s with each other. When doing so we will not get an exponent. It is not possible to add terms together and get exponents. So x+x+x+x will equal 4x. Try adding all of the x terms together and then all of the constant terms. Remember there is a 1 in front of each x. 1x+1x+1x…