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☆算术计算1题
〖1/1算式〗
作业:求算式 -0.0049*43^5+0.5056*43^4-17.665*43^3+258.94*43^2-1465.2*43+2158 的值.
题型:数学计算
解:
-0.0049*43^5+0.5056*43^4-17.665*43^3+258.94*43^2-1465.2*43+2158
=-0.0049*147008443+0.5056*43^4-17.665*43^3+258.94*43^2-1465.2*43+2158
=-0.0049*147008443+0.5056*3418801-17.665*43^3+258.94*43^2-1465.2*43+2158
=-0.0049*147008443+0.5056*3418801-17.665*79507+258.94*43^2-1465.2*43+2158
=-0.0049*147008443+0.5056*3418801-17.665*79507+258.94*1849-1465.2*43+2158
=-720341.3707+0.5056*3418801-17.665*79507+258.94*1849-1465.2*43+2158
=-720341.3707+1728545.7856-17.665*79507+258.94*1849-1465.2*43+2158
=-720341.3707+1728545.7856-1404491.155+258.94*1849-1465.2*43+2158
=-720341.3707+1728545.7856-1404491.155+478780.06-1465.2*43+2158
=-720341.3707+1728545.7856-1404491.155+478780.06-63003.6+2158
=1008204.4149-1404491.155+478780.06-63003.6+2158
=-396286.7401+478780.06-63003.6+2158
=82493.3199-63003.6+2158
=19489.7199+2158
=21647.7199 答案:-0.0049*43^5+0.5056*43^4-17.665*43^3+258.94*43^2-1465.2*43+2158=21647.7199你的问题在这里没有得到解决?请到 热门难题 里面看看吧!