alg revised.?

1 ⤊

Q1) solve the equation
3x^2 - 5x -1 = 0,
giving the answers correct to two decimal places.

2007-09-25 05:04:01 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

Use quadratic formula
x = [5 +/- sqrt(25+12)]/6
x = [5 +/- sqrt(37)]/6
x = (5 +/- 6.083)/6
x = -.18 or 1.85

2007-09-25 05:25:39 · answer #1 · answered by ironduke8159 7 · 1⤊ 0⤋

Use the Quadratic formula & a calculator.
x = [5 Â± â(25 + 12)] / 6
x = [5 Â± â(37)] / 6

2007-09-25 12:30:26 · answer #2 · answered by S. B. 6 · 0⤊ 0⤋

i graphed it on my ti84 and x= -0.18 and 1.85

2007-09-25 12:15:59 · answer #3 · answered by Anonymous · 0⤊ 1⤋