What are the solution(s) of x^2-4=0?
2 answers:
<u>Answer</u>
+2 and -2
<u>Explanation</u>
x^2-4=0 Is a quadrilateral expression. we can solve it using complete square method.
x²-4=0
x² - 4 + 4 = 0 + 4
x² = 4
x = √4 or x = - √4
= +2 = -2
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