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Cloud [144]
2 years ago
8

Please help I will give brainliest.

Mathematics
1 answer:
gogolik [260]2 years ago
6 0

Answer:

Options: 1, 4 & 6

Step-by-step explanation:

Yes:

1. -1(x-1)^{2} +9=-1(x^{2} -2x+1)+9=-x^{2} +2x-1+9=-x^{2} +2x+8

4. -x^{2} +2x+8

6. (x+2)(4-x)=2x-x^{2} +8=-x^{2} +2x+8

No:

2. -(x-9)^{2} +1=-(x^{2} -18x+81)+1=-x^{2} +18x+81+1=-x^{2} +18x+82

3. x^{2} +2x-8

5. (x+2)(x-4)=x^{2} -2x-8

Hope this helps

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