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# confused watch

1. Hello all

I am trying to work out the following problem on my calculator:

√(-3)squared- 4 x 6 x (-2)
(sorry about the squared, couldn't get the symbol to work)

The answer I am getting is 51. Can this be right or am I doing something wrong?

2. Is that [((-3)^2)^0.5]-[4*6*(-2)]?

If so that is just
3 + 48 = 51.
3. I think you want

and what you did was
4. 51 is correct for the what you typed out as it ends up as 3 - 4 X 6 X -2

which ends up as 3 + 48 = 51
5. Hi dean, where does the 0.5 come from. I thought it should be the square root of the whole equation when it was worked out. Its getting late and I am getting more confused. Thanks for replying
6. RND, that makes sense so how do I get the calculator to do the whole equation. Thanks again
7. (Original post by mousey42)
RND, that makes sense so how do I get the calculator to do the whole equation. Thanks again
You could get a calculator with natural display such as a casio fx 83 es or just put the whole expression to be square rooted in brackets.
8. (Original post by mousey42)
Hi dean, where does the 0.5 come from. I thought it should be the square root of the whole equation when it was worked out. Its getting late and I am getting more confused. Thanks for replying
y^0.5 _= sqrt y

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