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vikavojakova94

Ответ:

1) x²-22x+112=0

D= (-22)²- 4*112 = 484-448 = 36= 6²

x₁= (22-6)/2 = 16/2 = 8

x₂= (22+6)/2 = 28/2 = 14

x₁ + x₂= 8+14 = 22

x₁ * x₂ = 8*14 = 112

2) x²-8x-48=0

D= (-8)²+ 4*48= 64 + 192 = 256 = 16²

x₁= (8-16)/2 = -8/2= -4

x₂= (8+16)/2 = 24/2= 12

x₁ + x₂ = -4+12 = 8

x₁ * x₂ = -4*12 = -48

Объяснение:

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