Asked by Marina
find the LCD and solve:
x+3 12x + 4 1 - 2x
____ + _________ = _______
3-x x squared - 9 x + 3
x+3 12x + 4 1 - 2x
____ + _________ = _______
3-x x squared - 9 x + 3
Answers
Answered by
Damon
-(x+3)/(x-3)+(12x+4)/(x-3)(x+3) -2x/(x+3)
LCD = (x+3)(x-3) which is (x^2-9)
so
-(x+3)(x+3)/LCD +(12x+4)/LCD- 2x(x-3)/LCD
-x^2 - 6x - 9 + 12x + 4 -2x^2 + 6 x
all over LCD
(-3 x^2 + 12 x -5)/(x^2-9)
check my arithmetic
LCD = (x+3)(x-3) which is (x^2-9)
so
-(x+3)(x+3)/LCD +(12x+4)/LCD- 2x(x-3)/LCD
-x^2 - 6x - 9 + 12x + 4 -2x^2 + 6 x
all over LCD
(-3 x^2 + 12 x -5)/(x^2-9)
check my arithmetic
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