- 8 +- sqrt(28) / 6
2006-11-22 14:27:06 · 6 answers · asked by jeffeh_munro 1 in Science & Mathematics ➔ Mathematics
This is not an equation, quadratic or other. It is an expression and may be a solution to an equation. It can also be simplified. The sqrt of 28 is 2 times the sqrt of 7, and then the 2/6 cam be simplified. Does the 6 go with the -8 as well? If so you should use parentheses like this. (-8 +/-2sqrt7)/6
then simlify (-4 +/- sqrt7)/3
2006-11-22 14:32:37 · answer #1 · answered by mom 7 · 0⤊ 0⤋
This appears to be a quadratic equation filled into the -B (or quadratic formula) already.
By knowing the minus B formula the original quadratic of this was
3X^2 + 8X +3
The answer is
-4/3 + 1/3(SQRT 7) and
-4/3 - 1/3(SQRT 7)
(Quadratic formula is
-B +- (SQRT of (B^2-4AC)) all divided by 2A
2006-11-22 22:48:56 · answer #2 · answered by Robert J.P McGowan 1 · 0⤊ 0⤋
In order to have an equation, a math expression must EQUAL another math expression.
For example, 4 + 6 = 10 is an equation because the addition of 4 and 6 EQUALS the number 10 on the other side of the equal sign.
Your question appears to be the answer to a question; it does NOT have an equal sign.
Guido
2006-11-22 22:35:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
(-8 ± sqrt(28))/6 = (-8 ± sqrt(4 * 7))/6 = (-8 ± 2sqrt(7))/6 =
(1/3)(-4 ± sqrt (7))/6
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Assuming your equation is
3x^2 + 8x + 3 = 0
2006-11-22 23:58:04 · answer #4 · answered by Sherman81 6 · 0⤊ 0⤋
It looks like part of the quadratic formula.
2006-11-22 22:32:28 · answer #5 · answered by modulo_function 7 · 0⤊ 0⤋
Ä°m sorry This question is not true
2006-11-23 09:45:06 · answer #6 · answered by integral_op 3 · 0⤊ 0⤋