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If x^(2)=k+1, then (x^(4)-1)/(x^(2)+1)=...

If `x^(2)=k+1`, then `(x^(4)-1)/(x^(2)+1)`=

A

`k`

B

`k^(2)`

C

`k+2`

D

`k-2`

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ENGLISH SAT-HEART OF ALGEBRA-Multiple Choice
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  2. If (r+s)/(x-y)=(3)/(4), then (8r+8s)/(15x-15y)=

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  3. If x^(2)=k+1, then (x^(4)-1)/(x^(2)+1)=

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  4. If p=x(3x+5)-28, then p is divisible by which of the following express...

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  5. If (x+p) is a factor of both x^(2)+16x+64 and 4x^(2)+37x+k, where p an...

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  6. The fraction (x-2)/(x^(2)+4x-21) is not defined when x=

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  7. If (a^(2))/(2)=2a, then a equals

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  8. If (s-3)^(2)=0, what is the value of (s+3)(s+5)?

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  9. If k=7+(8)/(k), what is the value of k^(2)+(64)/(k^(2))?

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  10. (18-3w)/(w+6)=(w^(2))/(w+6) Which of the following represents the su...

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  11. Equation (1):2x^(2)+7x=4 Equation (2): (y-1)^(2)=9 If f is the gre...

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  12. x^(3)-20x=x^(2) If a, b, and c represents the set of all values of x...

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  13. If (x^(2))/(3)=x, then x=

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  14. By how much does the sum of the roots of the equation (x+1)(y-3)=0 exc...

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  15. If x^(2)-63x-64=0 and p and n are integers such that p^(n)=x, which of...

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  16. If rgt0 and t^(t)=6.25r^(t+2), then r=

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  17. (x)/(2x-1)=(2x+1)/(x+2) If m and n represents the solutions of the e...

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  18. (1)/((t-2)^(2))=6+(1)/(t-2) If p and q represents the solutions of t...

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  19. If 2x-3y=11 and 3x+15=0 , what is the value of y?

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  20. If 2a=3b and 4a+b=21, then b=

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