Question Factor the expression 21(x−1) Evaluate 21x−21Solution 21(x−1) Show Solution Find the roots x=1 Evaluate 21x−21To find the roots of the expression,set the expression equal to 0 21x−21=0Move the constant to the right-hand side and change its sign 21x=0+21Add the terms 21x=21Multiply by the reciprocal 21x×2=21×2Multiply x=21×2Solution More Steps Evaluate 21×2Reduce the numbers 1×1Simplify 1 x=1 Show Solution
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