The quotient of the difference of 5 times x cubed and 4 and x

2,10,-50 next two numbers geometric sequence

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2

Which function has an inverse that is also a function? a.{(-4,3), (-2, 7), (-1,0), (4, -3), (11, -7)} b.{(-4, 6), (-2, 2), (-1, 6), (4,2), (11, 2)} c.{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)} d.{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}