Factoring Polynomials & Solving Word Problem Involving Factoring Polynomials Learning Task 3. Set up an equation and solve each problem. (page 8) 1. The square of a number equals nine times that number. Find the number. Equation 2. Suppose that four times the square of a number equals 20 times that number. What is the number? Equation 3. Twice the square of the sum of a number and 3 is 98. Find the number. Equation Answer​