Question

Tentukan hasil penjabaran pangkat berikut.
a. (a + 3)³
b. (2x + 3y)²
c. (a - 1)⁴

Answer 1

(a+b)^3= a^3+3a^2B+3ab^2+B^3
a. (a+3)^3= a^3+9a^2+9a+27

(a+b)^2= a^2+2ab+b^2
b. (2x+3y)^2=4x^2+12xy+9y^2

(a+b)^4= a^4+4a^3b+6a^2b^2+4ab^3+b^4
c. (a-1)^4= a^4-12a^3+12a^2-4a+1