Hello, pashah,Originally Posted bypashah

I assume that your first problem reads:

Multiply by denominator. The next steps depends on the sign of the denominator!

. that means

or

. So the solution is:

2nd problem:

Solve thisequation:. You'll get:

Because this equation belongs to a quadratic funtion which open upward, the part of the function between the zeros is below the x-axis, that means it is smaller than zero. Therefore your solution is:

Greetings

EB