Solve using perfect square factoring patterns. y2 + 14y + 49 = 0 A:{0, –1} B:{7} C:{–7} D:{7, –7}

asked May 11, 2018 215k views

1 vote

Solve using perfect square factoring patterns. y2 + 14y + 49 = 0

A:{0, –1}
B:{7}
C:{–7}
D:{7, –7}

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5 votes

y² + 14y + 49 = 0

We know a² + 2ab + b² = (a + b)²
(y)² + 2 x 7 x y + (7)² = 0
(y + 7)² = 0
y = -7

y = -7

Correct option C

Jake Jones answered May 16, 2018

7.5k points

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