x^3+3x^2-2x^2-6因式分解
x^3+3x^2-2x^2-6因式分解
x^3+3x^2-2x^2-6因式分解
x^3+3x^2-2x^2-6因式分解
是x³+3x²-2x-6吧?
x³+3x²-2x-6=x²(x+3)-2(x+3)
=(x+3)(x²-2)
=(x+3)(x-√2)(x+√2)
x³+3x²-2x-6
=x²(x+3)-2(x+3)
=(x+3)(x²-2)
=(x+3)(x+√2)(x-√2)x²(x+3)-2(x+3)怎么转换成(x+3)(x²-2)提取公因数x+3