Question Simplify the expression 5a−2 Evaluate (15×3a)−2Solution 5a−2 Show Solution Find the roots a=52Alternative Form a=0.4 Evaluate (15×3a)−2To find the roots of the expression,set the expression equal to 0 (15×3a)−2=0Cancel out the common factor 3 5a−2=0Move the constant to the right-hand side and change its sign 5a=0+2Removing 0 doesn't change the value,so remove it from the expression 5a=2Divide both sides 55a=52Solution a=52Alternative Form a=0.4 Show Solution
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