Practice problem
When does ∣x∣⋅∣−x∣=−x⋅x\lvert x\rvert\cdot \lvert-x\rvert = -x\cdot x∣x∣⋅∣−x∣=−x⋅x?
Select all that apply.
If x>0x > 0x>0
If x=0x = 0x=0
If x<0x < 0x<0
None of the above
Type a concept, like “slope” or “photosynthesis”.
