HELP ME NOBODY IS ANWERIN HELLO

The triangles are similar. what is the value of x? enter your answer in the box. x = two right triangles. the larger right triangle is labeled x on the longer leg, 12 on the shorter leg and 20 on the hypotenuse. the smaller triangle is labeled 4 on the longer leg, 3 on the shorter leg, and 5 on the hypotenuse.

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

Find the missing dimension! need asap! tiny square is a =3025 in ²