Out of the 125 children at summer camp 45 signed up for swimming and 38 signed up for arts and crafts twelve students who signed
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Answer:
- 8
Step-by-step explanation:
Given
x² - 64 = 0 ( add 64 to both sides )
x² = 64 ( take the square root of both sides )
x = ± = ± 8
Solutions are x = 8 and x = - 8