x^3 - 9x^2 + 23x - 12
Answer:
2x^4-9x^3-8x^2+15x
Explanation:
(x^2-5x)(2x^2+x-3)
2x^4+x^3-3x^2-10x^3-5x^2+15x
2x^4+x^3-10x^3-3x^2-5x^2+15x
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