Question Factor the expression 3(2187−7t) Evaluate 6561−21tSolution 3(2187−7t) Show Solution Find the roots t=72187Alternative Form t=312.4˙28571˙ Evaluate 6561−21tTo find the roots of the expression,set the expression equal to 0 6561−21t=0Move the constant to the right-hand side and change its sign −21t=0−6561Removing 0 doesn't change the value,so remove it from the expression −21t=−6561Change the signs on both sides of the equation 21t=6561Divide both sides 2121t=216561Divide the numbers t=216561Solution t=72187Alternative Form t=312.4˙28571˙ Show Solution