Question

Can somebody please help me with these questions?

Answer 1

what are they

Answer 2

Hint: for both questions, use the law of exponents: \(y^{2x}=(y^x)^2\)
to transform the expression to a quadratic in y^x. From there, factor the quadratic in y^x.

Answer 3

Idk how to do these problems at all.

Answer 4

Have you learned about quadratics and the different ways to solve quadratic equations?
If not, here are some possible readings:
https://www.mathsisfun.com/algebra/quadratic-equation.html
https://www.khanacademy.org/math/algebra2/polynomial_and_rational/quad_factoring/v/example-1-solving-a-quadratic-equation-by-factoring