" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b) 15x^3+10x^2-(5x^3+10x)*4=15x^3+10x^2-20x^3+40x=10x^2-5x^3+40x
c) 6x+5(-2x+7)*5=6x+5-10x+35=-4x+40
d) 6x^2-12x(-x^2+12x)*3=6x^2-12x-3x^2+36x= 3x^2+24x