f.2
2(2x+y)2 – 6(2x+y)3= 2(2x+y)2 [1- 3(2x+y)]= _________________(answer)
thanks.
更新1:
...... to yuki nagato and larry, isn't it factorization..?? i mean... i don't relly know.. but i know that to double check the answer.. i need to calculate the answer and will get 2(2x+y)2 – 6(2x+y)3 back.. that means simplify is the opposite of factorization... .........
更新2:
i calculate back and calulate forth but i still got the same answer.. 2(2x+y)^2 – 6(2x+y)^3 = 2(2x+y) ^2 [1- 3(2x+y)] <------- = 2(2x+y) ^2 ( 1-6x-3y) = 2(2x+y) ^2 -6x[2(2x+y) ^2]- 3y [2(2x+y) ^2] = 2(2x+y) ^2 – 12x (2x+y) ^2 – 6y (2x+y) ^2 = (2-12x-6y) (2x+y) ^2 = 2((2x+y) ^2 [1- 3(2x+y)] <------
更新3:
oh no no no.. larry, you are right! XD
更新4:
oh nonono larry, u are right!! XD
