Solve by using the quadratic formula. 5x^2 – 3x = 1?

5 ⤊

Solve by using the quadratic formula. 5x^2 – 3x = 1

2007-10-07 05:07:15 · 3 answers · asked by trevor s 2 in Science & Mathematics ➔ Mathematics

x =(-b +- root(b^2-4ac))/2a
x =( 3 +- root(3^2-4*5*-1))/5*2
x=(3 +- root(9+20))/10
x = (3+-root29)/10

so, x = (3+root29)/10 and (3-root29)/10

2007-10-07 05:15:54 · answer #1 · answered by tsully87 3 · 1⤊ 0⤋

3+- srroot of 9+20/2*5

3+-sqrt 29/10

2007-10-07 05:14:44 · answer #2 · answered by nakul s 2 · 1⤊ 0⤋

5x² - 3x - 1 = 0
x = [ 3 ± √29 ] / 10 is exact answer
Approximate answer may be obtained by calculating √29

2007-10-07 06:43:28 · answer #3 · answered by Como 7 · 3⤊ 0⤋