1) 3 х2 - 15 = 0 2) ( х+3 )2 =100

Question

1) 3 х2 - 15 = 0

2) ( х+3 )2 =100

Answer 1

1) 3x² - 15 = 0
    3(x² - 5) = 0
    x² - 5 = 0
    x² = 5
         
2) (x + 3)² = 100
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          или