multiply (5x^2+4x-2)×(3-x-4x^2)
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Answered by
2
5x
2
+4x−2)×(3−x−4x
2
)
=5x
2
(3−x−4x
2
)+4x(3−x−4x
2
)−2(3x−x−4x
2
)
=15x
2
−5x
3
−20x
4
+12x−4x
3
−16x
3
−6x+2x+8x
2
=−20x
4
−21x
3
+19x
2
+14x−6
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1
Answer:
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