Question

polynomial (5x³+8x-9) +(2x³-5x+12) plz give me answer
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Answer 1

Answer:

7x³+3x+3

Step-by-step explanation:

5x³+8x-9+2x³-5x+12

( collect the like terms )

5x³+2x³+8x-5x+12-9

7x³+3x+3

i hope it may help you plz mark it as brainliest