Expand the expression $3x^{\left(a-1\right)}\left(-x^{\left(a-1\right)}+7x^{\left(a-5\right)}-4x^{\left(a+1\right)}\right)$

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Learn how to solve special products problems step by step online. Expand the expression 3x^(a-1)(-x^(a-1)+7x^(a-5)-4x^(a+1)). Multiply the single term 3x^{\left(a-1\right)} by each term of the polynomial \left(-x^{\left(a-1\right)}+7x^{\left(a-5\right)}-4x^{\left(a+1\right)}\right). When multiplying exponents with same base we can add the exponents. When multiplying exponents with same base we can add the exponents. When multiplying exponents with same base we can add the exponents.