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dimulka [17.4K]
3 years ago
15

X2 + 4x - 21 = 0 quadratic formula

Mathematics
1 answer:
Elena-2011 [213]3 years ago
6 0

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

x =  \frac{7}{2}

x = 3 \frac{1}{2}  \ x = 3.5

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