What are the solution(s) to the quadratic equation x2 – 25 = 0?
A. x = 5 and x = –5
B. x = 25 and x = –25
C. x = 125 and x = –125
D. no real solution
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Answer:
A. x = 5 and x = –5
Step-by-step explanation:
a2 - b2 = (a + b) (a - b)
x2 - 25 = (x)2 - (5)2
0 = (x + 5 ) (x - 5)
therefore x = 5 and x = –5
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Step-by-step explanation:
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