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2. a. 4b + 5a -7b - 2a -3b = 4b - 7b + 5a -2a - 7b - 3b = -3b + 3a -10b
b. 3p + 2q + 1 -2p +4q + 6 = 3p - 2p + 2q + 4q + 1 +6 = p + 6q + 7
Semoga Membantu
=(4x+y)+(2x-5y)
=6x-4y
2)a.=4b+5a-7b-2a-3b
=3a-6b
b. =3p+2q+1-2p+4q+6
=p+6q+7