Question
Simplify the expression
304r4−9
Evaluate
r4×304−9
Solution
304r4−9
Show Solution

Find the roots
r1=−38461731,r2=38461731
Alternative Form
r1≈−0.414803,r2≈0.414803
Evaluate
r4×304−9
To find the roots of the expression,set the expression equal to 0
r4×304−9=0
Use the commutative property to reorder the terms
304r4−9=0
Move the constant to the right-hand side and change its sign
304r4=0+9
Removing 0 doesn't change the value,so remove it from the expression
304r4=9
Divide both sides
304304r4=3049
Divide the numbers
r4=3049
Take the root of both sides of the equation and remember to use both positive and negative roots
r=±43049
Simplify the expression
More Steps

Evaluate
43049
To take a root of a fraction,take the root of the numerator and denominator separately
430449
Simplify the radical expression
More Steps

Evaluate
49
Write the number in exponential form with the base of 3
432
Reduce the index of the radical and exponent with 2
3
43043
Simplify the radical expression
More Steps

Evaluate
4304
Write the expression as a product where the root of one of the factors can be evaluated
416×19
Write the number in exponential form with the base of 2
424×19
The root of a product is equal to the product of the roots of each factor
424×419
Reduce the index of the radical and exponent with 4
2419
24193
Multiply by the Conjugate
2419×41933×4193
Simplify
2419×41933×46859
Multiply the numbers
More Steps

Evaluate
3×46859
Use na=mnam to expand the expression
432×46859
The product of roots with the same index is equal to the root of the product
432×6859
Calculate the product
461731
2419×4193461731
Multiply the numbers
More Steps

Evaluate
2419×4193
Multiply the terms
2×19
Multiply the terms
38
38461731
r=±38461731
Separate the equation into 2 possible cases
r=38461731r=−38461731
Solution
r1=−38461731,r2=38461731
Alternative Form
r1≈−0.414803,r2≈0.414803
Show Solution
