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2 votes
Simplify into one fraction

7/x-3 + 3/x-5

simplify into one fraction
-5/x-3 - -4.x+2

simplify into one fraction
6/x+7 - 3/x-2

2 Answers

5 votes
1. 10x-44/x(squared)-8x+15
2. X+22/x(squared) -x-6
3.3x-33/x(squared)+5x-14
User Qualebs
by
6.0k points
3 votes

Answer and Explanation :

We have simplify the expressions into one fraction :

1) Expression
(7)/(x-3)+ (3)/(x-5)

Taking LCM in the denominator,


=(7(x-5)+3(x-3))/((x-3)(x-5))


=(7x-35+3x-9)/(x^2-5x-3x+15)


=(10x-44)/(x^2-8x+15)

The required form is
(7)/(x-3)+ (3)/(x-5)=(10x-44)/(x^2-8x+15)

2) Expression
(-5)/(x-3)-(-4\cdot(x+2))

Taking LCM in the denominator,


(-5)/(x-3)+(4x+8)


=(-5+(4x+8)(x-3)))/(x-3)


=(-5+4x^2-12x+8x-24)/(x-3)


=(4x^2-4x-29)/(x-3)

The required form is
(-5)/(x-3)-(-4\cdot(x+2))=(4x^2-4x-29)/(x-3)

3) Expression
(6)/(x+7)- (3)/(x-2)

Taking LCM in the denominator,


=(6(x-2)-3(x+7))/((x+7)(x-2))


=(6x-12-3x-21)/(x^2-2x+7x-14)


=(3x-33)/(x^2+6x-14)

The required form is
(6)/(x+7)- (3)/(x-2)=(3x-33)/(x^2+6x-14)

User Nimo
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5.5k points