Question Simplify the expression 9x+21 Evaluate (−3x−7)(−3)Multiply the terms −3(−3x−7)Apply the distributive property −3(−3x)−(−3×7)Multiply the numbers More Steps Evaluate −3(−3)Multiplying or dividing an even number of negative terms equals a positive 3×3Multiply the numbers 9 9x−(−3×7)Multiply the numbers 9x−(−21)Solution 9x+21 Show Solution Find the roots x=−37Alternative Form x=−2.3˙ Evaluate (−3x−7)(−3)To find the roots of the expression,set the expression equal to 0 (−3x−7)(−3)=0Multiply the terms −3(−3x−7)=0Change the sign 3(−3x−7)=0Rewrite the expression −3x−7=0Move the constant to the right side −3x=0+7Removing 0 doesn't change the value,so remove it from the expression −3x=7Change the signs on both sides of the equation 3x=−7Divide both sides 33x=3−7Divide the numbers x=3−7Solution x=−37Alternative Form x=−2.3˙ Show Solution
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