12 x+12y = 156
4x + 6y =62 I need help please

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Which equation can be solved to find x the measure of jk in the apex