Here are the solutions for the given expressions.
:
2(x−2)1+6(x−2)1−3(x−1)1
Step 1: Find the least common denominator (LCD).
The denominators are 2(x−2), 6(x−2), and 3(x−1). The LCD is 6(x−2)(x−1).
Step 2: Rewrite each fraction with the LCD.
2(x−2)⋅3(x−1)1⋅3(x−1)+6(x−2)⋅(x−1)1⋅(x−1)−3(x−1)⋅2(x−2)1⋅2(x−2)
=6(x−2)(x−1)3(x−1)+6(x−2)(x−1)x−1−6(x−2)(x−1)2(x−2)
Step 3: Combine the numerators over the common denominator.
=6(x−2)(x−1)3(x−1)+(x−1)−2(x−2)
Step 4: Simplify the numerator.
=6(x−2)(x−1)3x−3+x−1−2x+4
=6(x−2)(x−1)(3x+x−2x)+(−3−1+4)
=6(x−2)(x−1)2x+0
=6(x−2)(x−1)2x
Step 5: Reduce the fraction.
=3(x−2)(x−1)x
The simplified expression is:
\frac{x{3(x-2)(x-1)}}
:
x+11+(x−1)22−(x−1)3x2
Step 1: Find the least common denominator (LCD).
The denominators are (x+1), (x−1)2, and (x−1)3. The LCD is (x+1)(x−1)3.
Step 2: Rewrite each fraction with the LCD.
(x+1)(x−1)31⋅(x−1)3+(x−1)2⋅(x+1)(x−1)2⋅(x+1)(x−1)−(x−1)3⋅(x+1)x2⋅(x+1)
=(x+1)(x−1)3(x−1)3+(x+1)(x−1)32(x2−1)−(x+1)(x−1)3x2(x+1)
Step 3: Combine the numerators over the common denominator.
=(x+1)(x−1)3(x−1)3+2(x2−1)−x2(x+1)
Step 4: Expand and simplify the numerator.
Recall (x−1)3=x3−3x2+3x−1.
=(x+1)(x−1)3(x3−3x2+3x−1)+(2x2−2)−(x3+x2)
=(x+1)(x−1)3x3−3x2+3x−1+2x2−2−x3−x2
Combine like terms:
=(x+1)(x−1)3(x3−x3)+(−3x2+2x2−x2)+(3x)+(−1−2)
=(x+1)(x−1)30−2x2+3x−3
=(x+1)(x−1)3−2x2+3x−3
The simplified expression is:
\frac{-2x^2 + 3x - 3{(x+1)(x-1)^3}}
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