I really need help pls help this subject is problems involving quadratic equationsOn question 6 to 8

Rectangle A is 12 cm bigger than rectangle B. Find the value of x. x+ 2 x+ 4 3x - 2 x+ 2 7 The lengths of the sides of two squares differ by 3 cm and the sum of their areas is 317 cm?. Find the length of the sides of the two squares. 8 The area of the trapezium is 60 cm2. Find the value of x. x + 3 x - 3 9 A stone is catapulted upwards. x - 4 The height, h metres, of the stone above the ground after t seconds