pls answer this
it's urgent
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Step-by-step explanation:
(15x⁴-6x²+11x-19)-(5x⁴+2x³+4x-7)
=(15x⁴-5x⁴)-2x³-6x²+(11x-4x)+(-19+7)
=10x⁴-2x³-6x²+7x-12
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