Ok I made a mistake the 2 that I had in there before was supposed to be to the power of 2.
2007-04-23 17:12:28 · 6 answers · asked by browneyedbeautifulbeauty 1 in Science & Mathematics ➔ Mathematics
Follow good ol' PEMDAS.
P arenthesis
12-4(-2)^2 / -1
E xponent
12-4(4) / -1
M ultiplicaton
D ivision (These can be done in either order.)
12-16/-1
12+16
A ddition
S ubtraction (These also can be done in either order.)
28
2007-04-23 17:18:18 · answer #1 · answered by Supermatt100 4 · 0⤊ 0⤋
12 - 4(3 - 5)^2 ÷ (-1)
= 12 - 4(-2)^2 ÷ (-1)
= 12 + 4(-2)^2
= 12 + 4(4)
= 12 + 16
= 28
2007-04-23 17:21:50 · answer #2 · answered by QiQi 3 · 0⤊ 0⤋
PEMDAS
3-5 = -2
-2 to the power of two is 4
-4 x 4 is -16
-16 divided by -1 = 16
12+16 = 28
answeris -4
2007-04-23 17:19:28 · answer #3 · answered by samandmak 1 · 0⤊ 0⤋
Grouping symbols
Exponents
Multiplication and division (left to right)
Subtraction and addition (left to right)
12 - 4(3 - 5)^2/ -1
12+4(-2)^2/-1
12 + 4 (-4 )/ -1
12 + 4 (-4)
12 + 16
28
2007-04-23 17:28:40 · answer #4 · answered by The Little Brainiac 4 · 0⤊ 0⤋
12 - 4(3 - 5)^2 ÷ (-1)
12-4(-2)²/(-1)
12+4(4)
12+16
28
HTH
Doug
2007-04-23 17:20:21 · answer #5 · answered by doug_donaghue 7 · 0⤊ 0⤋
First of all, you have a left parenthesis without a matching right one, so the expression isn't legal.
Where are you getting stuck? Do the operations in precedence order like your book shows, and you'll get the right answer.
Stuff in parentheses comes first.
Exponentiation (powers).
Multiplication and division, left to right.
Addition and subtraction, left to right.
2007-04-23 17:21:06 · answer #6 · answered by norcekri 7 · 0⤊ 0⤋