Now, I tried to figure this out. There aren't any denominators, so I don't have to worry about that. I can't factor this, so I used the quadratic formula, but my x values came to imaginary numbers, so does this mean there aren't any zeros, and therefore no solution? Help...
2006-09-14 17:02:16 · 8 answers · asked by *_Eyez Like Yourz_* 1 in Education & Reference ➔ Homework Help
X can be any number to make this statement true. If you were to graph this equation, it would be a parabola with the bottom above the x=0 line therfore any value of x gives a positive result.
2006-09-14 17:09:02 · answer #1 · answered by tsihilin 3 · 0⤊ 0⤋
Ok, looks like the answers given are not complete...so here is mine.
x^2 + 3x + 8 > 0
Lets find the solution for equation = 0
Completing the square we get,
x^2 + 3x + 2.25 + (8-2.25) = 0
(x + 1.5)^2 + 5.75 = 0
(x+1.5)^2 = -5.75
x+1.5 = +/-isqrt(5.75)
x= -1.5 + i sqrt(5.75)
= -1.5 - i sqrt(5.75)
The above are the zeros of the equation
So any value x greater than these two roots will work.
Good luck!
2006-09-14 17:39:16 · answer #2 · answered by alrivera_1 4 · 0⤊ 0⤋
I get the same thing as you....imaginary x is the only way for the x^2 part not to kill us.
2006-09-14 17:07:21 · answer #3 · answered by Brand X 6 · 0⤊ 0⤋
you have to think in decimals or there fraction equivelents in order to solve this using the quadratic formula.
2006-09-14 17:13:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The truth of math is there are always denominators.
I can't explain why, but my answer is :12
2006-09-14 17:11:48 · answer #5 · answered by islandboosky 3 · 0⤊ 0⤋
the answer is all x. any number you choose will satisfy this equation. water poison is correct
2006-09-14 17:34:58 · answer #6 · answered by Matty G 2 · 0⤊ 0⤋
i think x is an infinite amount numbers. try it out, i think any number works.
2006-09-14 17:07:58 · answer #7 · answered by water is poison 2 · 0⤊ 0⤋
fdgafg
2006-09-14 17:04:07 · answer #8 · answered by Daddy L 1 · 0⤊ 0⤋