Question
Simplify the expression
f424f4−105
Evaluate
24−f4105
Reduce fractions to a common denominator
f424f4−f4105
Solution
f424f4−105
Show Solution

Find the excluded values
f=0
Evaluate
24−f4105
To find the excluded values,set the denominators equal to 0
f4=0
Solution
f=0
Show Solution

Find the roots
f1=−2470,f2=2470
Alternative Form
f1≈−1.446254,f2≈1.446254
Evaluate
24−f4105
To find the roots of the expression,set the expression equal to 0
24−f4105=0
The only way a power can not be 0 is when the base not equals 0
24−f4105=0,f=0
Calculate
24−f4105=0
Subtract the terms
More Steps

Simplify
24−f4105
Reduce fractions to a common denominator
f424f4−f4105
Write all numerators above the common denominator
f424f4−105
f424f4−105=0
Cross multiply
24f4−105=f4×0
Simplify the equation
24f4−105=0
Move the constant to the right side
24f4=105
Divide both sides
2424f4=24105
Divide the numbers
f4=24105
Cancel out the common factor 3
f4=835
Take the root of both sides of the equation and remember to use both positive and negative roots
f=±4835
Simplify the expression
More Steps

Evaluate
4835
To take a root of a fraction,take the root of the numerator and denominator separately
48435
Multiply by the Conjugate
48×483435×483
Simplify
48×483435×2242
Multiply the numbers
More Steps

Evaluate
435×2242
Multiply the terms
470×22
Use the commutative property to reorder the terms
22470
48×48322470
Multiply the numbers
More Steps

Evaluate
48×483
The product of roots with the same index is equal to the root of the product
48×83
Calculate the product
484
Transform the expression
4212
Reduce the index of the radical and exponent with 4
23
2322470
Reduce the fraction
More Steps

Evaluate
2322
Use the product rule aman=an−m to simplify the expression
23−21
Subtract the terms
211
Simplify
21
2470
f=±2470
Separate the equation into 2 possible cases
f=2470f=−2470
Check if the solution is in the defined range
f=2470f=−2470,f=0
Find the intersection of the solution and the defined range
f=2470f=−2470
Solution
f1=−2470,f2=2470
Alternative Form
f1≈−1.446254,f2≈1.446254
Show Solution
