Ответ:
у=х²-3х-4
D=9+16=√25=5
x¹/²= (3±5):2=
x¹=4
x²=-1
y=(4;-1)
6>-1
6<4
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Ответ:
у=х²-3х-4
D=9+16=√25=5
x¹/²= (3±5):2=
x¹=4
x²=-1
y=(4;-1)
6>-1
6<4