October 2018 1 43 Report
Tolong dibantu ini susah banget!!
cth :
(x+4)³=(x+4)(x+4)
=(x+4)(x²+8x+16)
=x³+8x²+16x+4x²+32x+64
=x³+12x²+48+64

soal :
1. (a-5)⁴
2. (2x+y)³
gimana yaa(?)

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