1.22*9-1.33*4

1.22平方*9-1.33平方*4=(1.22*3)(1.22*3)-(1.33*2)(1.33*2）=（3.66+2.66）（3.66-2.66）=6.32

原式=（1.22×3+1.33×2)(1.22×3-1.33×2)=(3.66+2.66)(3.66-2.66)=6.32×1=6.32

原式=1.22^2×3^2-1.33^2×2^2=(1.22×3)^2-(1.33×2)^2=(1.22×3-1.33×2)×(1.22×3-1.33×2)我只能做到这一步了,不知道对不对

1.22^2*9-1.33^2*4=(1.22*3)^2-(1.33*2)^2=3.66^2-2.66^2=(3.66+2.66)(3.66-2.66)=6.32

平方差呗原式=1.22²×3²-1.33²×2²=（1.22×3＋1.33×2）（1.22×3－1.33×2）=6.32很详细了求分谢谢再问：若3的16次方可以

（3.66-2.66）×（3.66+2.66）=12.64

1.22^2*(4+5)-(1.22+0.11)^2*4=1.22^2*4+1.22^2*5-(1.22^2+2*1.22*0.11*4-0.11^2)*4=1.22^2*5-8*1.22*0.11-

=1.22的平方*3的平方-1.33的平方*2的平方.然后用平方差公式,=3.66的平方-2.66的平方=（3.66+2.66）*（3.66-2.66）=6.32

5.33x1/4-1.33/4=1/4(5.33-1.33)=1/4x4=1

:(1)1001^2-999^2=(1001+999)(1001-999)=2000*2=4000(2)1.33^2*4-1.22^2*9=(1.33*2)^2-(1.22*3)^2=(1.33*2+

1.22^×9-1.33^2×4=(1.22x3)²-(1.33x2)²=3.66²-2.66²=(3.66+2.66)(3.66-2.66)=6.32x1=6

原式=(1.22x3+1.33x2)x(1.22x3-1.33x2)=(3.66+2.66)x(3.66-2.66)=6.32x1=6.32

1.22²×9-1.33²×4=(1.22×3-1.33×2)(1.22×3+1.33×2)=(3.66-2.66)(3.66+2.66)=3.66+2.66=6.32

12.2的平方*9-1.33的平方*4=12.2^2*3^2-1.33^2*2^2=(3*12.2+1.33*2)(3*12.2-1.33*2)=(36.6+2.66)(36.6-2.66)=39.2

1.22²*9-1.33²*4=1.22²*3²-1.33²*2²=3.66²-2.66²=(3.66+2.66)(3.

1.22²×9-1.33²×4=（1.22×3+1.33×2）（1.22×3-1.33×2）=（3.66+2.66）（3.66-2.66）=6.32×1=6.32

1.22²*9-1.33²*4=﹙1.22×3﹚²－﹙1.33×2﹚²=﹙3.66＋2.66﹚﹙3.66－2.66﹚=6.32

22^2*9-1.33^2*4=(1.22*3)^2-(1.33*2)^2=3.66^2-2.66^2=(3.66+2.66)*(3.66-2.66)=6.32*1=6.32

1.22²×9-1.33²×4=(1.22×3-1.33×2)(1.22×3+1.22×2)=(3.66-2.66)(3.66+2.66)=1*6.32=6.32

129²-29²=(129+29)×(129-29)=158×100=158001.22²×9-1.33²×4=1.22²×3²-1.33&