Question

5x²-180=0. 5x²-9=0. 6x²=121
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Answer 1

Explicación:

5x² - 180=0

5x² = 180

x² = 36

x = 6

5x²-9=0

5x² = 9

x² = 9/5

x = √(9/5)

x = 3 / √5

6x² = 121

x² = 121/6

x = √(121/6)