Question

simplify 50 points...................​

Answer 1

Step-by-step explanation:

1/x²-7x+12 + 1/x²-9x+20 + 1/x²-8x+15

1/x²-(4+3)x+12 + 1/x²-(5+4)x+20 + 1/x²-(5+3)x+15

1/x²-4x-3x+12+ 1/x²-5x-4x+20 + 1/x²-5x-3x+15

1/x(x-4)-3(x-4) + 1/x(x-5)-4(x-5) + 1/x(x-5)-3(x-5)

1/(x-4)(x-3) + 1/(x-5)(x-4) + 1/(x-5)(x-3)

(x-5)+(x-3)+(x-4) / (x-5)(x-3)(x-4)

3x-12 / (x-5)(x-3)(x-4)

3(x-4) / (x-5)(x-3)(x-4)

3/(x-5)(x-3)

Answer 2

Answer:

Step-by-step explanation:

1/x²-7x+12 + 1/x²-9x+20 + 1/x²-8x+15

1/x²-(4+3)x+12 + 1/x²-(5+4)x+20 + 1/x²-(5+3)x+15

1/x²-4x-3x+12+ 1/x²-5x-4x+20 + 1/x²-5x-3x+15

1/x(x-4)-3(x-4) + 1/x(x-5)-4(x-5) + 1/x(x-5)-3(x-5)

1/(x-4)(x-3) + 1/(x-5)(x-4) + 1/(x-5)(x-3)

(x-5)+(x-3)+(x-4) / (x-5)(x-3)(x-4)

3x-12 / (x-5)(x-3)(x-4)

3(x-4) / (x-5)(x-3)(x-4)

3/(x-5)(x-3)