solve quadratic equation:
x2 + 8x + 16 = 0
x2 + 6x – 40 = 0
x2 + 3x - 9 = 0
x²- 8x + 15 = 0
x + 10x + 6 = 0
x2 - 4x + 1 = 0
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solve quadratic equation:
x2 + 8x + 16 = 0
x2 + 6x – 40 = 0
x2 + 3x - 9 = 0
x²- 8x + 15 = 0
x + 10x + 6 = 0
x2 - 4x + 1 = 0
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Answer:
1. (x+4)(x+4)
2. (x+10)(x-4)
3. (x+ )(x- )
4. (x-5)(x-3)
5. (x+)(x+)
6. (x+)(x-)
Step-by-step explanation:
Just use the FOIL method in checking.