计算1.222平方乘以9-1.333平方乘以4

问题描述:

计算1.222平方乘以9-1.333平方乘以4

1.222平方乘以9-1.333平方乘以4
=13.439556-7.107556
=6.332

1.222^2 * 9 - 1.333^2 * 4
=1.222^2 * 3^2 - 1.333^2 * 2^2
=(1.222 * 3)^2 - (1.333 * 2)^2
=3.666^2 - 2.666^2
=(3.666+2.666) * (3.666 - 2.666)
=6.332

1.222*1.222*9-1.333*1.333*4=6.332

1.222^2*9 - 1.333^2*4 == 6.332

1.222^2*9-1.333^2*4
=(1.222*3)^2-(1.333*2)^2
=3.666^2-2.666^2
=(3.666+2.666)*(3.666-2.666)
=6.332*1
=6.332