PLEASE HELP ME which equation is true when k= -15?

3 k - 11 = -34

-53 + 4 k = 7

Np4=12np2 with clear explanation.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol