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nirvana33 [79]
3 years ago
12

Solve the quadratic equation: x^2+ 2x + 7 = 21

Mathematics
1 answer:
Crank3 years ago
3 0

Answer:

x1 = -4.872983346

x2 = 2.872983346

Step-by-step explanation:

<u>Given:</u>

x^2+2x+7=21

<u>Subtract 21 on both sides to get the right side equal to 0:</u>

x^2+2x-14=0

<u>Use the quadratic formula:</u>

x1 = -4.872983346

x2 = 2.872983346

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