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# If you do -5*-5 it equals 25 but -5 to the second power would equal 25 too right?

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If you do -5*-5 it equals 25 but -5 to the second power would equal 25 too right?

Guest Apr 9, 2015

#4
+91972
+8

The is a lot of confusion here

\$\$(-5)^2=-5*-5=+25\$\$

So far we are in agreement.

NOW

\$\$40-5^2\$\$

I think that most of you would agree that this simplified as follows

\$\$40-25=15\$\$

So you see, the 5 was squared,   The minus was kept seperate.

I think of it like this

\$\$40-5^2=40-1*5^2 = 40-1*25=40-25=15\$\$

SO

\$\$-5^2=-1*5^2=-25\$\$

The minus sign is not squared - the answer is negative

Reiterating      That is a good word

\$\$\\(-5)^2=+25\\\\
-5^2=-25\$\$

Melody  Apr 10, 2015
Sort:

#1
0

No it wouldn't. it would be the exact opposite actually

Guest Apr 10, 2015
#2
+5

(-5)*(-5)=25

((-5)^2)=25

-((5)^2)=-25

Guest Apr 10, 2015
#3
0

-5^2 = -5 X -5      so yes

But -1(5^2) = -25. I think that may be where the confusion lies.

Guest Apr 10, 2015
#4
+91972
+8

The is a lot of confusion here

\$\$(-5)^2=-5*-5=+25\$\$

So far we are in agreement.

NOW

\$\$40-5^2\$\$

I think that most of you would agree that this simplified as follows

\$\$40-25=15\$\$

So you see, the 5 was squared,   The minus was kept seperate.

I think of it like this

\$\$40-5^2=40-1*5^2 = 40-1*25=40-25=15\$\$

SO

\$\$-5^2=-1*5^2=-25\$\$

The minus sign is not squared - the answer is negative

Reiterating      That is a good word

\$\$\\(-5)^2=+25\\\\
-5^2=-25\$\$

Melody  Apr 10, 2015

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