Aubreymtthunzi
Aubreymtthunzi
29-02-2016
Mathematics
contestada
Solve for x 5x(x-3)=2
Respuesta :
Panoyin
Panoyin
29-02-2016
5x(x - 3) = 2
5x(x) - 5x(3) = 2
5x² - 15x = 2
5x² - 15x - 2 = 0
x = -(-15) ± √((-15)² - 4(5)(-2))
2(5)
x = 15 ± √(225 + 40)
10
x = 15 ± √(265)
10
x = 1.5 ± √(265)
x = 1.5 + √(265) or x = 1.5 - √(265)
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