1.分解a²-a-12的结果为()
问题描述:
1.分解a²-a-12的结果为()
A.(a-3)(a+4) B.(a+3)(a-4)
C.(a-6)(a+2) D.(a+6)(a-2)
2.分解x²+2x-8的结果为()
A.(x+4)(x-2)B.(x-4)(x+2)
C.(x+4)(x+2) D.(x-4)(x-2)
3.分解m²-(1/6)m-1/6()
A.(m-1/6)(m+1)B.(m+1/6)(m-1)
C.(m-1/2)(m+1/3)D.(m+1/2)(m-1/3)
答
1.分解a²-a-12的结果为(B)A.(a-3)(a+4) B.(a+3)(a-4)C.(a-6)(a+2) D.(a+6)(a-2)2.分解x²+2x-8的结果为(A)A.(x+4)(x-2)B.(x-4)(x+2)C.(x+4)(x+2) D.(x-4)(x-2)3.分解m²-(1/6)m-1/6(C)A.(...