Question

Sederhanakan bentuk aljabar berikut a.2(3a+2b-c)+4(a-3b+5c) b.(2x+5)²-(x-3)² c.(2x²+13x+6):(x+6)

Answer 1

A. 2(3a+2b-c)+ 4(a-3b+5c)
= 6a+4b-2c + 4a-12b+20c
= 10a -8b +18c

b. (2x+5)^2 - (x-3)^2
= 4x^2 +20x +25 -( x^2 - 6x +9)
= 4x^2 +20x + 25 - x^2 + 6x -9
= 3x^2 +26x + 16

c. (2x^2 + 13x +6)
-----------------------
(x+6)

= (2x+1) (x+6)
------------------
(x+6)

= 2x+1