Problem

(3) $4 x^{2} - 36 = 0$

Answer

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Hide Steps

Answer

$x = \pm 3$

Steps

Step 1 ： $4 x^{2} - 36 = 0$

Step 2 ： $4 x^{2} = 36$

Step 3 ： $x^{2} = 9$

Step 4 ： $x = \pm \sqrt{9}$

Step 5 ： $x = \pm 3$

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