12x + 16 = 68
solve for x

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points