ax^2-bx^2+bx-ax-2a+2b
=(ax^2-bx^2)-(ax-bx)-(2a-2b)
=x²(a-b)-x(a-b)-2(a-b)
=(a-b)(x²-x-2)
=(a-b)(x-2)(x+1)
ax^2-bx^2+bx-ax-2a+2b 因式分解
ax^2-bx^2+bx-ax-2a+2b 因式分解
數(shù)學(xué)人氣:826 ℃時(shí)間:2020-06-03 15:54:25
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