(-72)x2又4分之1X(-9分之4)除以(-3又5分之3)

问题描述:

(-72)x2又4分之1X(-9分之4)除以(-3又5分之3)

(-72)x2又4分之1X(-9分之4)除以(-3又5分之3)
=(-72)x4分之9X(-9分之4)除以(-5分之18)
=72×(-5/18)
=-20-3的2次方X(-2)+4的2次方除以(-2)的3次方-|-2|的2次方-3的2次方X(-2)+4的2次方除以(-2)的3次方-|-2|的2次方=-9×(-2)+16÷(-8)-4=-18-2-4=-24(3/2-6/5-8/7+12/1)x(-24)(3/2-6/5-8/7+12/1)x(-24) =-3/2×24+6/5×24+8/7×24-12/1×24=-16+20+21-2=23