数学计算化简题1.234²+0.766²+2.468×0.766-3.35²+0.65²
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![数学计算化简题1.234²+0.766²+2.468×0.766-3.35²+0.65²](/uploads/image/z/3398098-58-8.jpg?t=%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E5%8C%96%E7%AE%80%E9%A2%981.234%26%23178%3B%2B0.766%26%23178%3B%2B2.468%C3%970.766-3.35%26%23178%3B%2B0.65%26%23178%3B)
数学计算化简题1.234²+0.766²+2.468×0.766-3.35²+0.65²
数学计算化简题
1.234²+0.766²+2.468×0.766-3.35²+0.65²
数学计算化简题1.234²+0.766²+2.468×0.766-3.35²+0.65²
原式=1.234²+(0.766²+2.468×0.766)+(0.65²-3.35²)
=1.234²+0.766*(0.766+2.468)+(0.65+3.35)(0.65-3.35)
=1.234²+0.766*3.234-4*2.7
=1.234²+0.766*1.234+0.766*2-4*2.7
= 1.234*(1.234+0.766)+0.766*2-4*2.7
=(1.234+0.766)*2-10.8
=-6.8
1.234²+0.766²+2.468×0.766-3.35²+0.65²
=1.234²+0.766²+2x1.234×0.766+0.65²-3.35²
=(1.234+0.766)^2+(0.65+3.35)(0.65-3.35)
=4-10.8
=-6.8