How do i goose a method to find a product

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2