Question

0.376的平方加1.624乘0.752加1.624的平方怎么算？

Answer 1

简便计算
0.376的平方+1.624x0.752+1.624的平方
=0.376的平方+2x1.624x0.376+1.624的平方
=(0.376+1.624)的平方
=2的平方
=4

Answer 2

0.376²+1.624×0.752+1.624²
=0.376²+1.624×（2×0.376）+1.624²
=0.376²+2×0.376×1.624+1.624²
=（0.376+1.624）²
=2²
=4