What is the factored form of this expression?

x^2 + 15x + 56

Substitute numerical values into the expression for p and q

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Me i’m stuck on all these questions besides the two bottom ones

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?