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Leo has a salary of 💷 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.
SW-User
34 replies 89 views May 29, 2021
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WandererTony · 56-60, M
(a+b)*(a-b)=a^2 - b^2
+ 1 · Reply · Translate · May 29, 2021
SW-User
+ 1 · Reply · Translate · May 29, 2021 · Edited: 4 yrs ago
WandererTony · 56-60, M
@SW-User the gif isnt visible :(
+ 1 · Reply · Translate · May 29, 2021
SW-User
@WandererTony It is. Reload!
+ 1 · Reply · Translate · May 29, 2021