Ответ:
Объяснение:
5х²+ 8х + 3
D=b² - 4ac = 64 - 4*5*3 = 64 - 60 = 2
x₁ = ( - 8 - 2 ) / 10 = - 1
x₂ = ( - 8 + 2 ) / 10 = -0.6
5x² + 8x + 3 = 5( x + 0.6 )( x + 1 ) C)
5x² + 8x + 3 = ( 5x + 3 )( x + 1 ) B)
5x² + 8x + 3 = ( x + 0.6 )( 5x + 5 ) D)
О т в е т : B) C) D)
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Ответ:
Объяснение:
5х²+ 8х + 3
D=b² - 4ac = 64 - 4*5*3 = 64 - 60 = 2
x₁ = ( - 8 - 2 ) / 10 = - 1
x₂ = ( - 8 + 2 ) / 10 = -0.6
5x² + 8x + 3 = 5( x + 0.6 )( x + 1 ) C)
5x² + 8x + 3 = ( 5x + 3 )( x + 1 ) B)
5x² + 8x + 3 = ( x + 0.6 )( 5x + 5 ) D)
О т в е т : B) C) D)