问题 Simplify the expression 62,152z2 Evaluate 80%z2×77,69By definition p%=p×0.01 80×0,01z2×77,69Calculate 0,8z2×77,69解题方案 62,152z2 显示解题方案 Find the roots z=0 Evaluate 80%z2×77,69To find the roots of the expression,set the expression equal to 0 80%z2×77,69=0解题方案 更多步骤 Evaluate 80%z2×77.69=0Multiply the terms 更多步骤 Evaluate 80%z2×77.69By definition p%=p×0.01 80×0.01z2×77.69Calculate 0.8z2×77.69Multiply the terms 62.152z2 62.152z2=0Rewrite the expression z2=0The only way a power can be 0 is when the base equals 0 z=0 z=0 显示解题方案
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