" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2. -3x(-2x^2-4x+1)-5(x^3-3x+2) = 6x^3+12x^2-3x-5x^3+15x-10 = x^3+12x^2+12x+5
3. -2(a-3b)+4(b-2a)-3(-5a+3b) = -2a+6b+4b-8a+15a-9b = 5a+b = 5*(-1)+(-4) = (-9)
4. 2x(-3x^2+5x-1)-3x^2(-5x+3) = -6x^3+10x^2-2x+15x^3-9x^2 = 9x^3+x^2-2x = -9+1+2 = (-6)