RT 3 Directions: Solve the following problem. 1. Find the base of a rectangular shape if its area is 12x2 + 14x - 10 and its height is (4x-2). 2. The area of a parallelogram is 21x2 -- 14x - 35 centimeters. Its height is (3x 5) centimeters. Find its base 3. Find the measure of the side of a square whose area is 144x2+ 24x + 1 cm. 4. Find the dimensions of a rectangle whose area is x2 + 3x - 54 cm². 5. Find the factors of the expression 6x2 + x - 5. 7