Hi all,
I always thought that my maths is pretty good but turns out not. Basically I was helping my son with his maths homework and got confused. We've tried scientific calculator, Google calculator, calculator on mobile phones and we've got the same answers. Here is my question - why -2 squared equal -4 but -2 × -2 is 4? Can anyone please explain me what am I missing here?
I always thought that my maths is pretty good but turns out not. Basically I was helping my son with his maths homework and got confused. We've tried scientific calculator, Google calculator, calculator on mobile phones and we've got the same answers. Here is my question - why -2 squared equal -4 but -2 × -2 is 4? Can anyone please explain me what am I missing here?