Question
Simplify the expression
2x4−10
Evaluate
x3×2x−10
Solution
More Steps

Evaluate
x3×2x
Multiply the terms with the same base by adding their exponents
x3+1×2
Add the numbers
x4×2
Use the commutative property to reorder the terms
2x4
2x4−10
Show Solution

Factor the expression
2(x4−5)
Evaluate
x3×2x−10
Multiply
More Steps

Evaluate
x3×2x
Multiply the terms with the same base by adding their exponents
x3+1×2
Add the numbers
x4×2
Use the commutative property to reorder the terms
2x4
2x4−10
Solution
2(x4−5)
Show Solution

Find the roots
x1=−45,x2=45
Alternative Form
x1≈−1.495349,x2≈1.495349
Evaluate
x3×2x−10
To find the roots of the expression,set the expression equal to 0
x3×2x−10=0
Multiply
More Steps

Multiply the terms
x3×2x
Multiply the terms with the same base by adding their exponents
x3+1×2
Add the numbers
x4×2
Use the commutative property to reorder the terms
2x4
2x4−10=0
Move the constant to the right-hand side and change its sign
2x4=0+10
Removing 0 doesn't change the value,so remove it from the expression
2x4=10
Divide both sides
22x4=210
Divide the numbers
x4=210
Divide the numbers
More Steps

Evaluate
210
Reduce the numbers
15
Calculate
5
x4=5
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±45
Separate the equation into 2 possible cases
x=45x=−45
Solution
x1=−45,x2=45
Alternative Form
x1≈−1.495349,x2≈1.495349
Show Solution
