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bearhunter [10]
3 years ago
6

Quadratic formula to solve

Mathematics
1 answer:
kondor19780726 [428]3 years ago
8 0
Hello :
7c²+8c+1 = 0
the discriminant <span>Δ = b²-4ac      a = 7     b= 8     c = 1
</span><span>Δ = 8²-4(7)(1)  = 64-28 = 36 = 6²
x1 = (-8-6)/14     x2 = </span> (-8+6)/14
x1 =-1   x2 = -1/7
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