Question

please answer all the questions above ​

Answer 1

Step-by-step explanation:

1. A
2. D
3. A
4. A
5. B) P(x) = x^2-2√2x+1 p(2√2)=(2√2)^2-(2√2)(2√2)+1

P(2√2) = 8-8+1

P(2√2) = 1

6. A) p(x) = -4x^2+5x+3

p(-1) = (-4)(-1)^2+5(-1)+3

p(-1) = -4-5+3

p(-1) = -6

7. D) p(x) = x+3

p(-x) = -x+3

p(x)+p(-x) = x+3-x+3

p(x)+p(-x) = 6

8. A

9. B) p(x) = 2x+5

2x+5 = 0

2x = -5

x = -5/2

10. B) 2x^2+7x-4 = 0

2x^2+8x-x-4 = 0

2x(x+4)-1(x+4) = 0

(x+4)(2x-1) = 0

x = -4;1/2

11. B

12. C) x+1 = 0

x = -1

2x^2+Kx = 0

2(-1)^2+k(-1) = 0

2-k = 0

k = 2

13. B

14. C

15.D

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