Step by Step Solution
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "^-1" was replaced by "^(-1)".
Step 1 :
x
Simplify —
2
Equation at the end of step 1 :
x (x2) - ((14 • (x-1)) • —) 2Step 2 :
Equation at the end of step 2 :
x
(x2) - ((2•7x(-1)) • —)
2
Step 3 :
Multiplying exponential expressions :
3.1 x(-1) multiplied by x1 = x((-1) + 1) = x0 = 1 Any number to the zero power is 1
Canceling Out :
3.2 Canceling out 2 as it appears on both sides of the fraction line
Equation at the end of step 3 :
(x2) - 7Step 4 :
Trying to factor as a Difference of Squares :
4.1 Factoring: x2-7
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 : 7 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares.
Final result :
x2 - 7
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