Question Simplify the expression −21−5a Evaluate 32−5a−53Solution −21−5a Show Solution Find the roots a=−521Alternative Form a=−4.2 Evaluate 32−5a−53To find the roots of the expression,set the expression equal to 0 32−5a−53=0Subtract the numbers −21−5a=0Move the constant to the right-hand side and change its sign −5a=0+21Removing 0 doesn't change the value,so remove it from the expression −5a=21Change the signs on both sides of the equation 5a=−21Divide both sides 55a=5−21Divide the numbers a=5−21Solution a=−521Alternative Form a=−4.2 Show Solution
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