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Use the Quadratic Formula to Solve For yy5x2+10xy+11y2+9x10y42=05 x ^ { 2 } + 10 x y + 11 y ^ { 2 } + 9 x - 10 y - 42 = 0

Question 7

Multiple Choice

Use the Quadratic Formula to solve for yy .​ 5x2+10xy+11y2+9x10y42=05 x ^ { 2 } + 10 x y + 11 y ^ { 2 } + 9 x - 10 y - 42 = 0


A) y=(10x10) ±(10x10) 244(5x29x42) 22y = \frac { - ( 10 x - 10 ) \pm \sqrt { ( 10 x - 10 ) ^ { 2 } - 44 \left( 5 x ^ { 2 } - 9 x - 42 \right) } } { 22 }
B) y=(10x10) ±(10x10) 244(5x2+9x42) 22y = \frac { ( 10 x - 10 ) \pm \sqrt { ( 10 x - 10 ) ^ { 2 } - 44 \left( 5 x ^ { 2 } + 9 x - 42 \right) } } { 22 }
C) y=(10x10) ±(10x10) 244(5x2+9x42) 22y = \frac { - ( 10 x - 10 ) \pm \sqrt { ( 10 x - 10 ) ^ { 2 } - 44 \left( 5 x ^ { 2 } + 9 x - 42 \right) } } { 22 }
D) y=(10x10) ±(10x10) 244(5x2+9x42) 22y = \frac { - ( 10 x - 10 ) \pm \sqrt { ( 10 x - 10 ) ^ { 2 } - 44 \left( 5 x ^ { 2 } + 9 x - 42 \right) } } { 22 }
E) y=(10x10) ±(10x10) 2+44(5x2+9x42) 22y = \frac { - ( 10 x - 10 ) \pm \sqrt { ( 10 x - 10 ) ^ { 2 } + 44 \left( 5 x ^ { 2 } + 9 x - 42 \right) } } { 22 }

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