Question

solve and find the answer
2x² - 18 = 0 ​

Answer 1

Answer:

Refer to the above attachment ✌️

Answer 2

Answer↷

$2 {x}^{2} - 18 = 0 \\ = {2x}^{2} = 18 \\ = {x}^{2} = \frac{18}{2} \\ = {x}^{2} = 9 \\ x = \sqrt{9} \\ x = 3$

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