RÓWNANIA KWADRATOWE:
Oblicz równanie :
2x(do potęgi drugiej=do kwadratu)+6x+3=0
Proszę o szybką pomoc.
2 x^2 + 6 x + 3 = 0
Mamy
a = 2 , b = 6, c = 3
delta = b^2 - 4ac = 6^2 - 4*2*3 = 36 - 24 = 12 = 4*3
p ( delty ) = p( 4*3) = 2 p(3)
zatem
x1 = [ - b - p(delty)]/(2a) = [ - 6 - 2 p(3)]/4 = -1,5 - 0,5 p(3)
x2 = [ - b + p(delty)]/(2a) = [ - 6 + 2 p(3)]/4 = -1,5 + 0,5 p(3)
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2 x^2 + 6 x + 3 = 0
Mamy
a = 2 , b = 6, c = 3
delta = b^2 - 4ac = 6^2 - 4*2*3 = 36 - 24 = 12 = 4*3
p ( delty ) = p( 4*3) = 2 p(3)
zatem
x1 = [ - b - p(delty)]/(2a) = [ - 6 - 2 p(3)]/4 = -1,5 - 0,5 p(3)
x2 = [ - b + p(delty)]/(2a) = [ - 6 + 2 p(3)]/4 = -1,5 + 0,5 p(3)
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