Mathematics

need help.  collect like terms,    7x²+9x⁴-3x²-x⁴-4x²= _______


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shaun1

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7x²+9x⁴-3x²-x⁴-4x² (7x²-3x²-4x²) + (9x⁴-x⁴) (4x²-4x²) + (8x⁴) (0) + (8x⁴) 8x⁴

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Jadeandrews260

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7x^2,(-3x^2),(-4x^2) are like terms 9x^4,(-x^4) are like terms

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