halllawson
12.12.2019 •
Mathematics
Determine the number of solutions for each quadratic equation
1. x2 - 3x + 4 = 0
2. 2x2 + 4x - 5 = 0
3. x2 + 8x + 16 = 0
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Ответ:
2) x'=(-2+√14)/2 & x"=(-2-√14)/2
3) x' x" -4
Ответ:
omg so true
Step-by-step explanation: