Sederhanakan bentuk” berikut a) (-3)^7 – (-3)^5 b) 5^3 – 5^2

By Admin ReiPosted on October 29, 2022

Sederhanakan bentuk” berikut
a) (-3)^7 – (-3)^5
b) 5^3 – 5^2

A. $(-3)^{7}- (-3)^{5}= (-3)^{5+2}- (-3)^{5}= (-3)^{5}x (-3)^{2}- (-3)^{5}$

$(-3)^{5} ( (-3)^{2}- 1)$

b. $5^{3}- 5^{2} =5^{2+1}- 5^{2} = 5^{2}x 5^{1}- 5^{2}= 5^{2}( 5-1)$