Question

What should be subtracted from the product of (x-3) (x2 + 3x + 9) to get
3x + 9.​

Answer 1

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(x-3)(x²+3x+9)

=> x³-3³ = x³-27

=> (x³-27)-P(x) = x³-3x+9

=> P(x) = 3x - 36

3x - 36 Should be Substituting From x³-7

To get,

=> x³-3x+9

• I Hope it's Helpful.