$\"\"$

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The equation is $\"\"$ .

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Rewrite the equation $\"\"$ .

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Factor the perfect square trinomial.

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$\"\"$

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Take square root on each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Solve for y,

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$\"\"$

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Subtract 6 from each side.

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$\"\"$

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Apply additive inverse property: $\"\"$

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$\"\"$

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$\"\"$

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Divide each side by 2.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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CHECK:

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To check the solution substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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Product of two same sings is negative.

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$\"\"$

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$\"\"$

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$\"\"$

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The equality is true. $\"\"$

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The value of $\"\"$ .