$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Add 30 to each side) \ \

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$\"\"$

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In this trinomial, $\"\"$ . Since c and b are positive signs, you need to find two positive factors with a sum of 19 and a product of $\"\"$ .

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$\"\"$

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Apply distributive property: $\"\"$ )

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$\"\"$ (Apply distributive property: $\"\"$ )

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$\"\"$ (Apply distributive property: $\"\"$ ) $\"\"$

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Use the principle of zeroproducts, which says, if ab=0, either a , b or both must be equal to zero.

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$\"\"$

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$\"\"$ (Add 5 to each side)

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ )

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$\"\"$ . (Apply additive identity property: $\"\"$ ) $\"\"$

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$\"\"$ (Divide each side by negative 4)

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$\"\"$ . (Cancel common terms) $\"\"$

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$\"\"$

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$\"\"$ (Add 6 to each side)

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ )

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$\"\"$ . (Subtract: $\"\"$ ) $\"\"$

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The solution of $\"\"$ is $\"\"$ .