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B) (4p - 9q) + (7p + 16q) = 11 p +7q
C) 2a + 8b - 9 + 9a -10b +112= 11a - 2a + 103
D) 2 (3x +5y +3) + 4 (2y - 3x + 6) = 6x +10y+6 + 8y -12y + 24 = -6x -2y+30
E) 4 (2xpangkat 2 - 3x + 5) dan 3 (4xpangkat 2 +2x - 7) = 20 x kuadrat - 6x - 1
kurangkanlah
a) 9a + 12 - (7a + 14 )=2a - 2
b) 6a + 15b - ( 9a - 10b) =-3a + 25
c) 15p + 18q -17 - (12p - 7q + 6 )= 3p +25 q -23
d) 3( 5x + 4y -8) - 4 (3x + 5y - 7) = 3x - 8y + 4
3) 4 ( 7y pangkat 2 + 6y -5) - -5 (4ypangkat 2 - 2y + 8) = 48 y kudrat -14y +20