( ax2 +x -2) x (x2-3x+7)
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Answer:
(ax²+x-2).(x²-3x+7)
ax⁴+x³-2x²-3ax³-3x²+6x+7ax²+7x-14
ax⁴+(1-3a)x³-5x²+7ax²+13x-14
ax⁴+(1-3a)x³(7a-5)x²+13x-14
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