factorize x/x-1 + x-1/x = 5/2
Answers
Answer:
STEP
1
:
5
Simplify —
2
Equation at the end of step
1
:
x 1 5
(((—-1)+x)-—)-— = 0
x x 2
STEP
2
:
1
Simplify —
x
Equation at the end of step
2
:
x 1 5
(((— - 1) + x) - —) - — = 0
x x 2
STEP
3
:
x
Simplify —
x
Equation at the end of step
3
:
1 5
(((1 - 1) + x) - —) - — = 0
x 2
STEP
4
:
Rewriting the whole as an Equivalent Fraction
4.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using x as the denominator :
x x • x
x = — = —————
1 x
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
4.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x • x - (1) x2 - 1
——————————— = ——————
x x
Equation at the end of step
4
:
(x2 - 1) 5
———————— - — = 0
x 2
STEP
5
:
Trying to factor as a Difference of Squares
5.1 Factoring: x2-1
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 1 is the square of 1
Check : x2 is the square of x1
Factorization is : (x + 1) • (x - 1)
Step-by-step explanation:
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