ME AJUDEM PRECISO MTmtmtmmt
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a) (14a²b³)/(21a³b) = (14/21)·(a²/a³)·(b³/b) = (2/3)·(1/a)·(b²/1) = 2b²/3a
b) (2x-4)/6 = (2x/6)-(4/6) = x/3 - 2/3 = (x-2)/3
c) 3/(3x+9) = 3/(3x+9) = (3/3)/(3x/3+9/3) = 1/(x+3)
d) (3a²b)/(ab²-a²b) = (3a²b/a²b)/(ab²/a²b-a²b/a²b) = 3/(b/a-1) = 3/(b-a)/a = 3a/b-a
e) (x²-10x+25)/(x²-25) = (x-5)²/(x+5)(x-5) = (x-5)/(x+5)
f) (49x²-36)/(14x²-12x) = (7x-6)(7x+6)/2x(7x-6x) = (7x+6)/2x = 7/2 + 3/x
b) (2x-4)/6 = (2x/6)-(4/6) = x/3 - 2/3 = (x-2)/3
c) 3/(3x+9) = 3/(3x+9) = (3/3)/(3x/3+9/3) = 1/(x+3)
d) (3a²b)/(ab²-a²b) = (3a²b/a²b)/(ab²/a²b-a²b/a²b) = 3/(b/a-1) = 3/(b-a)/a = 3a/b-a
e) (x²-10x+25)/(x²-25) = (x-5)²/(x+5)(x-5) = (x-5)/(x+5)
f) (49x²-36)/(14x²-12x) = (7x-6)(7x+6)/2x(7x-6x) = (7x+6)/2x = 7/2 + 3/x
jvitor20:
(3x+9)/3 = (3x/3+9/3) = (x+3)
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