# Can we do this with greater than sign

1. Jan 17, 2005

### Ryoukomaru

Can we do this with "greater than" sign

If $$(2x-9)(x+3)\geq0$$ then can we say $$(2x-9)\geq0$$ and $$(x+3)\geq0$$ and solve them seperately ? I am not sure if i can do this because of the $$\geq$$ sign.

Hmm wrong section. Actually this is part of my homework anyway.

2. Jan 17, 2005

### Yapper

Yeah you can do that because you are dividing both sides by the binomials and 0/ by anything equals 0.

3. Jan 17, 2005

### Galileo

The product will also be positive if both factors are negative.

4. Jan 17, 2005

### vincentchan

this is part of the solution only....
Hints
could both values inside the bracket be negative?

5. Jan 17, 2005

### Ryoukomaru

Thx a lot all and thx again for the hint.