Tolong kakak dijawab pliss sama langkah-langkahnya
Jawab:
Penjelasan dengan langkah-langkah:
1.) 4p+2r-3q-p-6q-2r
=(4p-p)+(-3q-6q)+(2r-2r)
= 3p - 9q
2.) (x² + 3x) - (4x - x²)
=x² + 3x -4x + x²
=(x²+x²) +(3x-4x)
=2x² + (-x)
= 2x² - x
3.) a + b - c - (2b +4a - 5c)
= a + b - c - 2b -4a +5c
=(a - 4a) + (b - 2b) + ( -c + 5c)
= (-3a) + (-2b) + 4c
= 4c - 3a -2b
4.) 5a² +3ab +c - ( ab - c + 2a² )
= 5a² +3ab +c - ab +c -2a²
= (5a²- 2a²) + (3ab - ab) + (c + c)
= 3a² + 2ab + 2c
5.) 4a - 2b +c + ab - (2ba - 7b) - 4a - c
= 4a - 2b +c + ab -2ab + 7b - 4a - c
= (4a -4a) + (ab - 2ab) + (-2b + 7b) + (c - c)
= -2ab + 5b
[answer.2.content]
