Question Factor the expression 5(2a+1) Evaluate 10a+5Solution 5(2a+1) Show Solution Find the roots a=−21Alternative Form a=−0.5 Evaluate 10a+5To find the roots of the expression,set the expression equal to 0 10a+5=0Move the constant to the right-hand side and change its sign 10a=0−5Removing 0 doesn't change the value,so remove it from the expression 10a=−5Divide both sides 1010a=10−5Divide the numbers a=10−5Solution More Steps Evaluate 10−5Cancel out the common factor 5 2−1Use b−a=−ba=−ba to rewrite the fraction −21 a=−21Alternative Form a=−0.5 Show Solution