4. What are the solutions of the quadratic equation, 2x2 = 50?
A. 5 and - 5
B. 10 and - 10
C. 25 and - 25
D. 50 and - 50
A. 5 and - 5
B. 10 and - 10
C. 25 and - 25
D. 50 and - 50
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Answer:
A. 5 and -5
Step-by-step explanation:
a=2, b=0, c=-50.
x=−b±√b2−4ac/2a
x=−(0)±√(0)2−4(2)(−50)/2(2)
x=0±√400/4
x=5 or x=−5