Answer:
+/- √5
Step-by-step explanation:
2x² - 10 = 0
2(x² -5) = 0
x² - 5 = 0
x² = 5
x = +/- √5
checking:
2(√5)² - 10 = 0
10 - 10 = 0
0 = 0
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Answers & Comments
Answer:
+/- √5
Step-by-step explanation:
2x² - 10 = 0
2(x² -5) = 0
x² - 5 = 0
x² = 5
x = +/- √5
checking:
2(√5)² - 10 = 0
10 - 10 = 0
0 = 0