Let p=x^2-7. Which equation is equivalent to (x^2-7)^2-4x^2+28=5 in terms of p?

Choose 1

(Choice A)

A

p^2+4p-5=0p

2

+4p−5=0p, squared, plus, 4, p, minus, 5, equals, 0

(Choice B)

B

p^2-4p+23=0p

2

−4p+23=0p, squared, minus, 4, p, plus, 23, equals, 0

(Choice C)

C

p^2-4p-5=0p

2

−4p−5=0p, squared, minus, 4, p, minus, 5, equals, 0

(Choice D)

D

p^2+4p+23=0p

2

+4p+23=0

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