Question

Find the sum of 9x + 2y ^ 3, - 4y - 6x, 3x ^ 2 + 2y - 7x​

Answer 1

Step-by-step explanation:

it's quite difficult

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Answer 2

Step-by-step explanation:

Sum : (3x+4y+z)+(−6x+7y−8z)=−3x+11y−7z

Now, −3x+11y−7z− (4x−2y+z)=−7x+13y−8z