Question Factor the expression 8(9−5t) Evaluate 72−40tSolution 8(9−5t) Show Solution Find the roots t=59Alternative Form t=1.8 Evaluate 72−40tTo find the roots of the expression,set the expression equal to 0 72−40t=0Move the constant to the right-hand side and change its sign −40t=0−72Removing 0 doesn't change the value,so remove it from the expression −40t=−72Change the signs on both sides of the equation 40t=72Divide both sides 4040t=4072Divide the numbers t=4072Solution t=59Alternative Form t=1.8 Show Solution
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