China | A Nice Algebra Problem
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- เผยแพร่เมื่อ 2 ต.ค. 2024
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Student: I did it in my head
Teacher: show me your work
Student: No.
In just half second X=1 because 7 times 5 need to be equals to 35.
Τέλειο-Perfect!!!!!
Γεια σου! Πώς είσαι, φίλε μου; I'm russian and I learn greek language) I like your history and language
x1=1; x2=-ln35/ln7≈-1.827 😁
may i know the titles of background music?
X= 1.
Is it 1?
Yes, and... there's a negative solution too, because the function is concave up with a minimum at (0,1). Separate your 5s and 7s and log both sides. Factor out an (x-1) and you'll get the other solution.
Good
You can just do x=1. No need for these hard calculations
😂
By inspection right?
But 1 is not the only answer
@@Garden_Of_Eden_ ik dude but just seeing the equation we can already determine 1 solution
@@jabi3616 Sure!