2006-10-04 19:08:25 · 8 answers · asked by sose k 2 in Education & Reference ➔ Homework Help
the problem just says
-2 squared there are NO PARENTHESES
2006-10-04 19:31:49 · update #1
no -2^2=-(2*2)=-4 and (-2)^2=(-2)(-2)=4
2006-10-04 19:14:54 · answer #1 · answered by raj 7 · 0⤊ 0⤋
My interpretation is -2^2 is -(2^2) = -4, and I believe that is the correct approach. Using the accepted priorities of mathematical operations: Brackets, Exponents, Multiplication, Divisiion, Addition, Subtraction. Since there are no brackets, -X is a multiplication -1*X, therefore, the exponent operation is done first, then the multiplication. However, the only way to make the problem unambiguous is to use brackets.
2006-10-05 03:52:29 · answer #2 · answered by gp4rts 7 · 0⤊ 0⤋
By-2 squared, if you want to mean -(squared 2), well the answer is no because the answer will be:
-(squared 2)=-(4)= -4
but if you mean squared (-2), the answe is yes , it would be:
squared of (-2)=[(-2)^2]= (-2)*(-2) =4
2006-10-05 02:23:53 · answer #3 · answered by Amirza 1 · 0⤊ 0⤋
yes
-2 = ( -2)
therefore
-2 squared = - 2 * -2 = (-2)*(-2) = +4 = 4
2006-10-05 02:14:24 · answer #4 · answered by chathura 1 · 0⤊ 0⤋
This question turns on whether -2^2 is interpreted as (-2)^2 or -(2^2). Generally speaking the exponentiation binds tighter so that -2^2 will be interpreted as -(2^2) = -4, which is different from (-2)^2.
This depends on conventions so YMMV.
2006-10-05 02:18:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
NO!!! -2^2 is like -(2^2) = -4
(-2^2)=(-2)*(-2)=4
2006-10-05 02:16:53 · answer #6 · answered by haringrobert 3 · 0⤊ 0⤋
yes it is
2006-10-05 02:15:02 · answer #7 · answered by remo 2 · 0⤊ 0⤋
same....
2006-10-05 02:11:31 · answer #8 · answered by Anonymous · 0⤊ 0⤋