问题 Simplify the expression 4121qr2 Evaluate q×840285×r2×2Covert the mixed number to an improper fraction 更多步骤 Convert the expressions 840285Multiply the denominator of the fraction by the whole number and add the numerator of the fraction 408×40+285Multiply the terms 40320+285Add the terms 40605 q×40605r2×2Multiply the terms 更多步骤 Evaluate 40605×2Reduce the numbers 20605×1Multiply the numbers 20605Cancel out the common factor 5 4121 q×4121r2解题方案 4121qr2 显示解题方案
代数
微积分
三角学
矩阵 代数 微积分 三角学 矩阵