Question

The equation 25x2−9y2=225 can be written in standard form by

Answer 1

Given equation:

$25x^2\text{ - }9y^2\text{ = 225}$

To write in standard form, we divide both sides by 225:

$\begin{gathered} \frac{25x^2}{225}\text{ - }\frac{9y^2}{225}\text{ = }\frac{225}{225} \\ \frac{x^2}{9\text{ }}\text{ -}\frac{y^2}{25}\text{ = 1} \end{gathered}$

Hence, to write the equation in standard form, we divide both sides by 225

First drop-down : dividing

Second drop-down : 225