x^2 + 2x - 15 = 0 を因数分解で解く方法

How to Solve x^2 - 2x -15 = 0 by Factoring

x^2-2x-15 solve by Factorization

x^2 + 2x - 15 = 0 を平方完成して解きます。

非線形不等式: x^2 - 2x - 15 ≥ 0 を解く

"If `alpha,beta` are zeroes of the polynomial `x^2-2x-15 ,` then form a quadratic polynomial

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因数 x^2 - 2x - 15

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