Nice Algebra Math Simplification | Find the value of X

[@Teachbajrangi]

Very good

[@MathmentorX19]

Thanks!! I'm glad you liked it! 😀

[@Worldsamoedit]

идеальный🗿👍🏻

[@MathmentorX19]

Thanks 👍🏻😁

[@alir4889]

Tanks❤

[@jjsmallpiece9234]

Alternatively write an Excel spreadsheet and substitute values of X. Would take about 5mins instead of wasting 15minutes

[@SalemHamdyn]

❤

[@EddyGordo21]

So this thing will look like a w and will never cross the x axis at x=2? So.... will it look like a w or will it look more like wm?

[@ElObservador33]

Creo que una w

[@에스피-z2g]

Solution by insight
1680=8×7×6×5
=8!/4!
x=2

[@MathmentorX19]

Excellent!

[@user-u3e3kx5m6pg]

1680=2⁴x3x5x7 and is a multiplying 4 consecutive numbers. 3² is not in this group. There are two possible cases; all four numbers >9 or 10000. The second case implies the group must include 5 and 7. Therefore, 5x6x7x8=1680 and x=2. QED

[@MathmentorX19]

Good! Thanks for commenting.