Question

1. 3 (2a - 5b) = ....
2. 3 ab (ab{2} + 3a{2}b - ab) = ...
3. (x+2) (x+2) = ...
4. (x+2) (x-3) =....
5. (x+2) (2x-5) = ...

Answer 1

1. 3(2a-5b)=6a-15b
3. (x+2)(x+2)=2x+4+4+2x=2x+2x+4+4=4x+8
4. (x+2)(x-3)=x berpangkat2 -3x+2x-6=Xberpangkat2-5x-6
5. (x+2)(2x-5)=2Xberpangkat2-5x+4x-10=2X berpangkat2 X-10=2x-10

maaf kurang tau jawaban no 2