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blondinia
[14]
2 years ago
9
0=x^2-20 can you solve using square root formula? Then by using quadratic formula?
Mathematics
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1
answer:
Nastasia
[14]
2 years ago
8
0
Sqrt(x^2) = sqrt(20)
x = +2sqrt(5)
x = -2sqrt(5)
x1 = (- 0 + sqrt(0^2 - 4*1*(-20))) / (2*1)
X2 = (-0 - sqrt(0^2 - 4*1*(-20))) / (2*1)
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