What is the standard form of #y= (-2/9x-1/5)(3/7x-1/3) #?

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Answer 1 · 2016-08-05T15:03:49

#-19/105x + 19/135#

Consider:#" "color(blue)((-2/9x-1/5))color(brown)((3/7x-1/3))#

Multiply everything inside the right hand bracket by everything in the left.

Note that the signs follow the values they are assigned to

#color(brown)(color(blue)( -2/9)(3/7x-1/3) color(blue)(" "-1/5)(3/7x-1/3) )#

#-2/21x+2/27 " "-3/35x+1/15#

#-19/105x + 19/135#

Thank goodness for calculators! - Horrible numbers!!!