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Tw1xy
@Tw1xy
July 2023
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Розкладіть на множники квадратний тричлен
-5x^2 + 3x + 14
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persona2672727
-5x^2 +3x +14 =-5(x-7/5)(x-2)
-5x^2 +3x+14=0
D = 9 - 4*(-5)*14= 9+280=289
x1=-3+17/2*(-5)= 14/-10=-7/5
x2=-3-17/2*(-5)=-20/-10=2
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Answers & Comments
-5x^2 +3x+14=0
D = 9 - 4*(-5)*14= 9+280=289
x1=-3+17/2*(-5)= 14/-10=-7/5
x2=-3-17/2*(-5)=-20/-10=2