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(4x^4+7x+5x^3)+(8x^4+6x^3-3x)-(4x^4+4x^3-8x) plz help​
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(4x^4+7x+5x^3)+(8x^4+6x^3-3x)-(4x^4+4x^3-8x)
plz help​

User Damien Golding
by
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1 Answer

2 votes

Answer:

8x⁴ - 7x³ + 12x

Explanation:

=(4x⁴ + 7x + 5x³) + (8x⁴ + 6x³ - 3x)- (4x⁴ + 4x³ - 8x)

=4x⁴ + 7x + 5x³ + 8x⁴ + 6x³ - 3x - 4x⁴ - 4x³ + 8x

=4x⁴ + 8x⁴ - 4x⁴+ 5x³ + 6x³ - 4x³ + 7x - 3x + 8x

=8x⁴ + 7x³ + 12x

User Carl Von Blixen
by
6.1k points
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