1003136407 | math4u.vsb.cz

SubArea:

Rational equations and inequalities

Level:

Project ID:

1003136407

Accepted:

1

Clonable:

0

Easy:

0

Choose the resulting form of the given equation after multiplying both sides by

x^{2} - 9

.

- \frac{x + 1}{9 - x^{2}} = \frac{1 + x}{3 - x} - \frac{x}{3 + x}

x + 1 = (1 + x) (- x - 3) - x (x - 3)

- x - 1 = (1 + x) (- x - 3) - x (x - 3)

x + 1 = (1 + x) (x + 3) + x (x - 3)

- x - 1 = (1 + x) (- x - 3) + x (x - 3)