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 Towandadavis Posts: 1, Reputation: 1 New Member #1 Sep 4, 2012, 08:01 PM
solve quadratic equation from india x^2 - 2x -13 = 0
How to solve Indian quadratic equation x^2-2x-13=0
 teacherjenn4 Posts: 4,001, Reputation: 468 Education Expert #2 Sep 4, 2012, 08:13 PM
What have you done so far to figure out this problem?
 aktime Posts: 1, Reputation: 1 New Member #3 Sep 12, 2012, 01:29 PM
Originally Posted by teacherjenn4
What have you done so far to figure out this problem?
x^ - 2x - 13 = 0
x^ - 2x = 13
4x^ - 8x = 4x^ - 8x + 4 = 52 + 4 4x^ - 8x + 4 = 56
2x - 2 = ±√(56) (d)
2x-2 = ±√(4*14)
2x-2 = ±2√(14)
2x = 2+2√(14).. . 2x = 2-2√(14)
x = 1 + √(14).. . x = 1 - √(14)

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