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Factor Completely x5+4x421x3x^{5}+4 x^{4}-21 x^{3} A) (x27)(x3+3)\left(x^{2}-7\right)\left(x^{3}+3\right) B) (x4+7x3)(x3)\left(x^{4}+7 x^{3}\right)(x-3) C) x3(x+7)(x3)x^{3}(x+7)(x-3) D) x3(x7)(x+3)x^{3}(x-7)(x+3)

Question 61

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- x5+4x421x3x^{5}+4 x^{4}-21 x^{3}


A) (x27) (x3+3) \left(x^{2}-7\right) \left(x^{3}+3\right)
B) (x4+7x3) (x3) \left(x^{4}+7 x^{3}\right) (x-3)
C) x3(x+7) (x3) x^{3}(x+7) (x-3)
D) x3(x7) (x+3) x^{3}(x-7) (x+3)

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