There is a problem that a polynomial subtracts x to the second power + 14x-6. Xiaoqiang mistakenly takes it as an addition calculation, and the result is 2x to the second power - x + 3. The correct result is multiple How to calculate? There must be a formula There is a problem that a polynomial subtracts x to the second power + 14x-6. Xiaoqiang mistakenly takes it as an addition calculation, and the result is 2x to the second power - x + 3. What is the correct result?

There is a problem that a polynomial subtracts x to the second power + 14x-6. Xiaoqiang mistakenly takes it as an addition calculation, and the result is 2x to the second power - x + 3. The correct result is multiple How to calculate? There must be a formula There is a problem that a polynomial subtracts x to the second power + 14x-6. Xiaoqiang mistakenly takes it as an addition calculation, and the result is 2x to the second power - x + 3. What is the correct result?

Let the polynomial be m. according to the misdecomposing formula of Xiaoqiang, M + (X & sup2; + 14x-6) = 2x & sup2; - x + 3, M = (2x & sup2; - x + 3) - (X & sup2; + 14x-6) because Xiaoqiang mistakenly takes addition calculation, the correct algorithm should be subtraction, that is, to find out how much m - (X & sup2; + 14x-6) = and substitute the value of m into m - (X & sup2; +