Problem

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

Answer

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Answer

\( x = \pm 3 \)

Steps

Step 1 ：\( 4x^{2} - 36 = 0 \)

Step 2 ：\( 4x^{2} = 36 \)

Step 3 ：\( x^{2} = 9 \)

Step 4 ：\( x = \pm\sqrt{9} \)

Step 5 ：\( x = \pm 3 \)

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