2007-10-25 08:50:36 · 5 answers · asked by breathless_5478 1 in Education & Reference ➔ Homework Help
You have to be careful to get the operations right because of the way it is written.
(-8)(-4) means (-8) MULTIPLIED by (-4)
(-4)-3 means take (-4) and SUBTRACT 3
Remember the order of operations. Multipications first and addition/subtractions next.
So... you do (-8)(-4)(-4) first. You get (-8)(-4)=32
then 32(-4)=-128
Then do the subtractions.... -128 -3 = -131
2007-10-25 08:59:08 · answer #1 · answered by tkquestion 7 · 0⤊ 1⤋
A negative times a negative is a positive.
A positive times a negative is a negative.
So -8 X -4 is positive 32. Times -4 is -128.
A Negative minus a negative is like ignoring the negatives and do basic math. Then you put the negative back in.
So -128 -3 = -131
2007-10-25 16:01:10 · answer #2 · answered by Maria G 2 · 0⤊ 1⤋
neg * neg = positive
neg * pos = negative
(-8 * -4)(-4) (-3) = +32 (-4)(-3) = -128 (-3) = 384
answer: 384
or if that last number is being subtracted
(-8 * -4)(-4) (-3) = +32 (-4)(-3) = -128 -3 = -131
answer: -131
2007-10-25 15:57:10 · answer #3 · answered by a_talis_man 5 · 1⤊ 0⤋
(-8) * (-4) = (32)
(32) * (-4) = (-128)
(-128) - 3 = -131
answer: -131
2007-10-25 15:59:47 · answer #4 · answered by Alex 2 · 0⤊ 1⤋
-19
2007-10-25 15:55:39 · answer #5 · answered by Anonymous · 0⤊ 2⤋