Kakak², tolong bantu aku ngerjain PR aku nih loh. Tolong, soalnya besok antar nyaa.
2. ( 3x + 3 )^2
= ( 3x + 3 ) ( 3x + 3 )
= 9x^2 + 9x + 9x + 9
= 9x^2 + 18x + 9
3. ( x + 2 )^2
= ( x + 2 ) ( x + 2 )
= x^2 + 2x + 2x + 4
= x^2 + 4x + 4
2. (x+ 2x +3)^2
= (3× + 3)^2
= 9x^2 + 18x +9
3. (2x – x + 2)^2
=(x + 2)^2
=x^2 + 4x + 4