UC知道因式分解题！！很急！！！定有重赏！！
来源：百度知道 编辑：UC知道 时间：2024/06/08 17:28:05
1.(x+4)(x-7)+10
2.1-6xy^3+9x^2y^6
3.(9x^2-4y^2)(3x+2y)
4.(m^2+m+2)(m^2+m-5)-8
2.1-6xy^3+9x^2y^6
3.(9x^2-4y^2)(3x+2y)
4.(m^2+m+2)(m^2+m-5)-8
1. (x+4)(x-7)+10
=x^2-3x-28+10
=x^2-3x-18
=(x-6)(x+3)
2. 1-6xy^3+9x^2y^6=(3x^2y^3-1)^2
3. (9x^2-4y^2)(3x+2y)=(3x+2y)(3x-2y)(3x+2y)=(3x+2y)^2(3x-2y)
4. (m^2+m+2)(m^2+m-5)-8
=(m^2+m)^2-3(m^2+m)-10-8
=(m^2+m)^2-3(m^2+m)-18
=(m^2+m-6)(m^2+m+3)
=(m+3)(m-2)(m^2+m+3)
1 (x+3)(x-6)
下面不知道你写什么
1.x+4)(x-7)+10
=x^2-3x-18
=(x-6)(x+3)
2. 1-6xy^3+9x^2y^6
=(1-3xy^3)^2
3.(9x^2-4y^2)(3x+2y)
=(3x+2y)^2(3x-2y)
4.(m^2+m+2)(m^2+m-5)-8
=(m^2+m)^2-3(m^2+m)-18
=(m^2+m-6)(m^2+m+3)
=(m^+3)(m-2)(m^2+m+3)
1. (x+4)(x-7)+10
=x^2-3x-28+10
=x^2-3x-18
=(x-6)(x+3)
2. 1-6xy^3+9x^2y^6=(3x^2y^3-1)^2
3. (9x^2-4y^2)(3x+2y)=(3x+2y)(3x-2y)(3x+2y)=(3x+2y)^2(3x-2y)
4. (m^2+m+2)(m^2+m-5)-8
=(m^2+m)^2-3(m^2+m)-10-8
=(m^2+m)^2-3(m^2+m)-18
=(m^2+m-6)(m^2+m+3)
=(m+3)(m-2)(m^2+m+3)
应该就这样了