Question Factor the expression 21(2y−7) Evaluate y−27Solution 21(2y−7) Show Solution Find the roots y=27Alternative Form y=3.5 Evaluate y−27To find the roots of the expression,set the expression equal to 0 y−27=0Move the constant to the right-hand side and change its sign y=0+27Solution y=27Alternative Form y=3.5 Show Solution