Question

Add
(iii) 2x 3 - 3x2 + 7x – 8,- 5x3 + 2x2 - 4x +1, 3 - 6x + 5x2 - x3
(iv) 2x2 - 8xy + 7y? - 8xy, 2xy? +6xy - y2 + 3x?, 4y2 - xy - x² + xy
(v) x + y - 2 + 3xyz, - x + y + zs - 6xyz, x - y - 28 - 8xyz
(vi) 2 + x - x2 + 6x3, - 6 - 2x + 4x2 – 3x3, 2 + x2, 3 - x + 4x – 2x2
solve question with process I make you brainlist
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Answer 1

take the all polynomial with same variable and their power