Question

Ada yg tau jawabanya gk?
hasil((2r-7s))-(r-2s))(r-2s)=

Answer 1

2r-7s-r+=2s
=2r-r-7s+2s
=(r-5s)(r-2s)
=r^2 - 2rs -5rs +10s^2
=r^2 - 7rs + 10s^2

Answer 2

(2r² - 18rs - 14s²)(r-2s)
2r³ - 18r²s - 14rs² - 2r²s - 36rs² - 14 s³
2r³ - 14s³ - 20r²s - 50rs²