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Leo has a salary of 馃挿 120000. Calculate his new salary if it is increased by x% & decreased by x%. [I Like Mathematics]

The answer is: 120000(1 - x^2/10^4)

Please explain the steps.
Riemann
31-35, M
34 replies 68 views May 29, 2021
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WandererTony 路 56-60, M
(a+b)*(a-b)=a^2 - b^2
+ 1 路 Reply 路 Translate 路 May 29, 2021
Riemann 路 31-35, M
+ 1 路 Reply 路 Translate 路 May 29, 2021 路 Edited: 2 yrs ago
WandererTony 路 56-60, M
@Riemann the gif isnt visible :(
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Riemann 路 31-35, M
@WandererTony It is. Reload!
+ 1 路 Reply 路 Translate 路 May 29, 2021