Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
You are not logged in.
Post a reply
Topic review (newest first)
I will use the almighty formula for the factorization, I presume I will get some decimal figures as answers.
So now the question has become:
It still will not lead to those answers:
x = -1
x = -2
Closest equation with those answers that I can find:
If you are marked wrong about it then you will have the consolation of knowing that I would have been marked wrong too.
Yeb I must believe you, c'os the author stated explicitly that, a student should forgive any mistake that would be found in the book. Is just at the beginning of the book .
I could not solve that by hand. It takes a computer to solve it. The answer involves complex numbers further showing that the problem is mistyped.
Then please how exactly would the final answer be?
It still looks like a mistake in the book. -1 and -2 are not roots of that equation.
The book is before me now and has positive 1 just at the end.
It is obviously some sort of typo.
Yes Sir!. Positive 1 is at the end
Yes that's how it is arranged, in the book.
This is exactly what is in the book then?
The book did not use the symbol ^, I rather used it , because the 2x +3 is at the top of the 3 in the book.
Hasn't he raised a good point with
I would agree, but you say it is there! But then his post #5 is correct and that is not a solution.
It means the 3 has raised to the power 2x+3.