Subtract: a³ + b² - c from a³ - b² - c
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Your Solution:
(a³ - b² - c) - (a³ + b² - c)
= a³ - b² - c - a³ - b² + c
= a³ - a³ - b² - b² - c + c
= -2b²
I hope you got it.
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Answered by
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Answer:
First we change side
a³-b²-c - a³+b²-c
Then we change sign of the right hand expression
a³-b²-c -(+a³-b²+c)
=a³-b²-c -a³-b²+c)
Now just keep them in same expression so we can minus it
=a³-a³-b²-b²-c+c
= -2b²
Not writing the c one because it's 0
Hence, 0 don't have negative sign or positive
0dont have a sign
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