Question

Tolong jawab ya bntu aku . jwb
pake kamera jg ya

Answer 1

Notes:
(a+b)(a-b) = a^2-b^2
(a+b)^2= a^2+2ab+ b^2
(a-b)^2= a^2-2ab+b^2

a^2= axa
a^3= axaxa