Question

Despeja la variable y de la ecuación 2x2 – 4y2 = 169.

Answer 1

Answer: y = - 165/8

Step by step explanation:

-Multiply the numbers - 4-4y x 2 = 169

-Calculate the product 4-8y = 169

- Move the constant to the right side and change its sign - 8y = 169 - 4

- Subtract the numbers -8y = 165

- Divide both sides of the equation by -8 and = - 165/8

- Solution y = 165/8

(Alternative Form) y = - 20 5/8, y = 20.625

Answer is -

 x1=2, x2=3