x2= 5 解:(x 1)(x 11)=0 x 1=0或x 11=0 ∴x1= 1,x2= 11 解:(x 2)(x 11)=0 x 2=0或x 11=0 ∴x1= 2,x2= 11 解:(x13)(x13)=0 x13=0或x13=0 ∴x1= 13,x2= 3 解:(x2)(x 3)=0 x2=0或x 3=0 ∴x1= 2,x2= 13 解:(x 3)(x 4)=0 x 3=0或x 4=0 ∴x1= 3,x2= 17 解:(x 1)(x 7)=0 x 1=0或x 7=0 ∴x1= 1,x2= 22 解:(x 11)(x 11)=0 x 11=0或x 11=0 ∴x1= 11,x2= 7 解:(x1)(x7)=0 x1=0或x7=0 ∴x1= 1,x2= 22 解:(x1)(x 22)=0 x1=0或x 22=0 ∴x1= 1。
x2= 18 解:(x1)(x18)=0 x1=0或x18=0 ∴x1= 1,x2= 4 解:(x3)(x4)=0 x3=0或x4=0 ∴x1= 3,x2= 18 解:(x 1)(x18)=0 x 1=0或x18=0 ∴x1= 1,x2= 11 解:(x2)(x11)=0 x2=0或x11=0 ∴x1= 2,x2= 6 解:(x3)(x6)=0 x3=0或x6=0 ∴x1= 3,x2= 2 解:(x 1)(x 5)=0 x 1=0或x 5=0 ∴x1= 1,x2= 3 解:(x2)(x3)=0 x2=0或x3=0 ∴x1= 2,x2= 4 解:(x3)(x 4)=0 x3=0或x 4=0 ∴x1= 3,x2= 22 解:(x1)(x22)=0 x1=0或x22=0 ∴x1= 1,x2= 3 解:(x3)(x 5)=0 x3=0或x 5=0 ∴x1= 3,x2= 22 解:(x2)(x 11)=0 x2=0或x 11=0 ∴x1= 2,x2= 13 解:(x 13)(x 13)=0 x 13=0或x 13=0 ∴x1= 13,x2= 11 解:(x 2)(x11)=0 x 2=0或x11=0 ∴x1= 2,x2= 4 解:(x 1)(x 18)=0 x 1=0或x 18=0 ∴x1= 1, x2 3x 2=0 x2 6x 5=0 x2 12x 11=0 x2 18x 17=0 x2 8x 7=0 x2 6x 7=0 x2 6x 7=0 x2 8x 7=0 x2 5x 6=0 x2 5x 6=0 x2 x 6=0 x2 x 6=0 x2 2x 15=0 x2 2x 15=0 x2 8x 15=0 x2 8x 15=0 x2 23x 22=0 x2 23x 22=0 x2 9x 22=0 x2 9x 22=0 x2 13x 22=0 x2 13x 22=0 x2 21x 22=0 x2 21x 22=0 x2 22x 121=0 x2 22x 121=0 x2 26x 169=0 x2 26x 169=0 x2 7x 12=0 x2 7x 12=0 x2 x 12=0 x2 x 12=0 x2 19x 18=0 x2 19x 18=0 x2 17x 18=0 x2 17x 18=0 x2 9x 18=0 x2 9x 18=0 x2 3x 18=0 x2 3x 18=0 解:(x 1)(x 2)=0 x 1=0或x 2=0 ∴x1= 1,x2= 11 解:(x11)(x11)=0 x11=0或x11=0 ∴x1= 11,x2= 18 解:(x 3)(x 6)=0 x 3=0或x 6=0 ∴x1= 3,x2= 18 解:(x1)(x 18)=0 x1=0或x 18=0 ∴x1= 1,x2= 6 ,x2= 11 解:(x 1)(x 17)=0 x 1=0或x 17=0 ∴x1= 1,x2= 6 解:(x 3)(x6)=0 x 3=0或x6=0 ∴x1= 3,x2= 4 解:(x 3)(x4)=0 x 3=0或x4=0 ∴x1= 3。
x2= 5 解:(x 3)(x 5)=0 x 3=0或x 5=0 ∴x1= 3,x2= 7 解:(x1)(x 7)=0 x1=0或x 7=0 ∴x1=1,十字相乘法练习题(含答案)适合打印-百度文库,x2= 5 解:(x 3)(x5)=0 x 3=0或x5=0 ∴x1= 3,x2= 7 解:(x 1)(x7)=0 x 1=0或x7=0 ∴x1= 1,x2= 5 解:(x3)(x5)=0 x3=0或x5=0 ∴x1= 3,x2= 11 解:(x 1)(x22)=0 x 1=0或x22=0 ∴x1= 1,x2= 7 解:(x 2)(x 3)=0 x 2=0或x 3=0 ∴x1= 2,x2= 6 解:(x3)(x 6)=0 x3=0或x 6=0 ∴x1= 3,x2= 3 解:(x 2)(x3)=0 x 2=0或x3=0 ∴x1= 2,x2= 5 解:(x 1)(x 22)=0 x 1=0或x 22=0 ∴x1= 1。