solve using formula x2+10x+2=0
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Step-by-step explanation:
a = 1 b = 10 c = 2
b² - 4ac = 10² - 4 × 1 × 2
= 100 - 8
= 92
x = -b +√(b² - 4ac )
-10 + √98
= -10 + 7√2 or 10 - 7√2
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