A=2a+5b+8 . B=a+3b+4 . A+B=........ A-B=............
Matematika
dawiya1
Pertanyaan
A=2a+5b+8 . B=a+3b+4 . A+B=........ A-B=............
1 Jawaban
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1. Jawaban BeetSha
A = 2a + 5b + 8
B = a + 3b + 4
A + B
= 2a + 5b + 8 + a + 3b + 4
= 2a + a + 5b + 3b + 8 + 4
= 3a + 8b + 12
A - B
= 2a + 5b + 8 - (a + 3b + 4)
= 2a + 5b + 8 - a - 3b - 4
= 2a - a + 5b - 3b + 8 - 4
= a + 2b + 4