Question

Tentukan hasil penjabaran bentuk aljabar berikut
A.(x+2) (x-3)
B.(2x-3) (x+4)
C.(4k+1)²
D.(3m+2n) (3m-2n)
E.(3-a) (5+a)
F.(2+a) (a²-2a+1)

Answer 1

A) (x+2) (x-3) = x² - 3x +2x - 6 = x² - x - 6
b) (2x-3) (x+4) = 2x² + 8x - 3x - 12 = 2x² + 5x - 12
c) (4k + 1) (4k + 1) = 16k² + 4k +4k + 1 = 16k² + 8k + 1

Answer 2

A. (x+2)(x-3)
x^2-3x+2x-6
x^2-x-6

B. (2x-3)(x+4)
2x^2+8x-3x-12
2x^2+5x-12

C. (4k+1)^2
16k^2+8k+1

D. (3m+2n)(3m-2n)
9m^2-6m+6m-4n^2
9m^2-4n^2

E. (3-a)(5+a)
15+3a-5a-a^2
16-2a-a^2

F. (2+a)(a^2-2a+1)
2a^2-4a+2+a^3-2a^2+a
a^3-3a+2