Ответ:
x1 =
x2 =
Объяснение:
3x + 1*(x-2) - (x-1)*(x+2)= (x+2)*(x-2)
3x + x - 2 - x² - x + 2 = x² - 4
-2x² + 3x + 4 = 0
D = b² - 4ac = 9 + 32 = 41;
x1 = = =
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Verified answer
Ответ:
x1 =
x2 =
Объяснение:
3x + 1*(x-2) - (x-1)*(x+2)= (x+2)*(x-2)
3x + x - 2 - x² - x + 2 = x² - 4
-2x² + 3x + 4 = 0
D = b² - 4ac = 9 + 32 = 41;
x1 =
= 
= 
x2 =