用因式分解,x平方2x-35
问题描述:
用因式分解,x平方2x-35
答
x²+2x-35
=(x+7)(x-5)
x²-2x-35
=(x-7)(x+5)
用因式分解,x平方2x-35
x²+2x-35
=(x+7)(x-5)
x²-2x-35
=(x-7)(x+5)