Question Factor the expression 21(x−6) Evaluate 21x−3Solution 21(x−6) Show Solution Find the roots x=6 Evaluate 21x−3To find the roots of the expression,set the expression equal to 0 21x−3=0Move the constant to the right-hand side and change its sign 21x=0+3Removing 0 doesn't change the value,so remove it from the expression 21x=3Multiply by the reciprocal 21x×2=3×2Multiply x=3×2Solution x=6 Show Solution
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