Solve by completing the square and check.
1. x²+4x-12=0
2. x²-3x-10=0
3. 4x²-4x-3=0
Solve each equation using the quadratic formula.
4. x²-5x-14=0
5. 6x²+13x=5
1. x²+4x-12=0
2. x²-3x-10=0
3. 4x²-4x-3=0
Solve each equation using the quadratic formula.
4. x²-5x-14=0
5. 6x²+13x=5
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Answer:
1. x=6,-2 (x+6)(x-2)
2. x= -5,2 (x-5)(x+2)
4. 7,-2
5.