" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 20xy-10x
b. (x+5) (5x-1)
= 5x^2-x+25x-5
= 5x^2+24x-5
c. (7-2x) (2x-7)
= 14x-49-4x^2+14x
= -4x^2+28x-49
nb. '^' artinya pangkat
dicek lagi yaa