So im pretty sure my math teacher is completely dumb but if someone can work out this simple problem and let me know what you get it would be awesome! What is the value of X^3-x^2y^2-y^3 if x= -1 and y= -2?
2007-09-16 05:56:40 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First, you have:
(-1)^3 - (-1)^2*(-2)^2 - (-2)^3
Then, by taking the exponents:
(-1) - (1)*(4) - (-8)
Multiplying and taking away parenthases:
-1 - 4 + 8 = -5 + 8 = 3
2007-09-16 06:01:21 · answer #1 · answered by Madadivad 2 · 0⤊ 0⤋
Term 1 (-1)^3 = -1
Term 2 (-1)2 * (-2)2 = 4
Term 3 (-2)3= -8
Then -1 -(4) - (-8) = +3
2007-09-16 06:02:50 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
its a favorable selection. look into the unit circle, and start up on the 0. circulate down around the circle for 7/6pi. on condition that its extra beneficial than 1pi, the respond would be above the midway mark, making it beneficial. i wish this made experience? yet itll be at 5/6pi. you're able to desire to locate the sin of that.
2016-10-09 07:07:24 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Yes indeed; it is a simple problem. You should be capable of making the substitutions and evaluating the expression on your own.
2007-09-16 06:04:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Answer will be 2.
2007-09-16 06:02:51 · answer #5 · answered by Amitabh Banik 2 · 0⤊ 0⤋