plz tell me ans i will mark brainlist
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37- a-b
38- (a-b)
43- x(ax+b)
44- 2mn(9+5p)
45- (2y-3)(y-3)
46- 19xy(2xyz+1)
47- 12xyz
48- (67+37) = 3120
49-(102+103)==205
50-12x²y²
52-8x³
54-16a²+16b²
56-3y
57-2(x+2y)
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