Masing2 Operasi pada bentuk
aljabar berikut)
a. 3 a + 2b – 4a+5b
b.4a-7b +3-2a +5b+8
c. (4x – 7a + 3) + (-2x+5a-8)
d. (7x+6y -2) – (5x-2y-3)
Tentukan hasil dari
Penjelasan dengan langkah-langkah:
a. 3 a + 2b – 4a+5b
=3a-4a +2b+5b
= -a+7b
b.4a-7b +3-2a +5b+8
= 2a -2b+11
c. (4x – 7a + 3) + (-2x+5a-8)
=4x – 7a + 3 -2x+5a-8
= 2x -2a -5
d. (7x+6y -2) – (5x-2y-3)
= 7x+6y -2 – 5x + 2y + 3
= 2x + 8y + 1
Jawaban:
a.
= 3a + 2b – 4a + 5b
= 3a – 4a + 2b + 5b
= -a + 7b
b.
= 4a – 7b + 3 – 2a + 5b + 8
= 4a – 2a – 7b + 5b + 3 + 8
= 2a – 2b + 11
c.
=(4x – 7a + 3) + (-2x + 5a – 8)
= 4x – 7a + 3 – 2x + 5a – 8
= 4x – 2x – 7a + 5a + 3 – 8
= 2x – 2a – 5
d.
= (7x + 6y – 2) – (5x – 2y – 3)
= 7x + 6y – 2 – 5x + 2y + 3
= 7x – 5x + 6y + 2y – 2 + 3
= 2x + 8y + 1
semoga membantu