Question Simplify the expression 21qr−q3r−z3 Evaluate 3q×7r−q3r−z2×zMultiply the terms 21qr−q3r−z2×zSolution More Steps Evaluate z2×zUse the product rule an×am=an+m to simplify the expression z2+1Add the numbers z3 21qr−q3r−z3 Show Solution
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