Free points can i have a follow?? thanks

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Acircle has a circumference of 7.850 units. what is its radius?

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²