7th question answer fast urgent!!!
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Answer:
14x power 4 + -36x³+18x²
Step-by-step explanation:
2x²(9-3x²)-4x³(9-5x)
=18x²-6x power 4 -36x³+20x power 4
=14x power 4 + -36x³+18x²
14x power 4 + -36x³+18x²
Step-by-step explanation:
2x²(9-3x²)-4x³(9-5x)
=18x²-6x power 4 -36x³+20x power 4
=14x power 4 + -36x³+18x²
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