Alguien que necesite ayuda en la carpeta de recuperacion Experiencia 2 y 3

2do de secundaria​

What number should be added to both sides of the equation to complete this square? x^2-10x=7

What is the binomial expansion of (2x-3)^5

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.