Question
Simplify the expression
Solution
−3x3−5x4
Evaluate
(−x2×3x)−(5x2×x2)
Multiply
More Steps

Multiply the terms
−x2×3x
Multiply the terms with the same base by adding their exponents
−x2+1×3
Add the numbers
−x3×3
Use the commutative property to reorder the terms
−3x3
(−3x3)−(5x2×x2)
Remove the parentheses
−3x3−(5x2×x2)
Solution
More Steps

Multiply the terms
5x2×x2
Multiply the terms with the same base by adding their exponents
5x2+2
Add the numbers
5x4
−3x3−5x4
Show Solution
Factor the expression
Factor
−x3(3+5x)
Evaluate
(−x2×3x)−(5x2×x2)
Multiply
More Steps

Multiply the terms
x2×3x
Multiply the terms with the same base by adding their exponents
x2+1×3
Add the numbers
x3×3
Use the commutative property to reorder the terms
3x3
(−3x3)−(5x2×x2)
Remove the parentheses
−3x3−(5x2×x2)
Multiply
More Steps

Multiply the terms
5x2×x2
Multiply the terms with the same base by adding their exponents
5x2+2
Add the numbers
5x4
−3x3−5x4
Rewrite the expression
−x3×3−x3×5x
Solution
−x3(3+5x)
Show Solution
Find the roots
Find the roots of the algebra expression
x1=−53,x2=0
Alternative Form
x1=−0.6,x2=0
Evaluate
(−x2×3x)−(5x2×x2)
To find the roots of the expression,set the expression equal to 0
(−x2×3x)−(5x2×x2)=0
Multiply
More Steps

Multiply the terms
x2×3x
Multiply the terms with the same base by adding their exponents
x2+1×3
Add the numbers
x3×3
Use the commutative property to reorder the terms
3x3
(−3x3)−(5x2×x2)=0
Remove the parentheses
−3x3−(5x2×x2)=0
Multiply
More Steps

Multiply the terms
5x2×x2
Multiply the terms with the same base by adding their exponents
5x2+2
Add the numbers
5x4
−3x3−5x4=0
Factor the expression
−x3(3+5x)=0
Divide both sides
x3(3+5x)=0
Separate the equation into 2 possible cases
x3=03+5x=0
The only way a power can be 0 is when the base equals 0
x=03+5x=0
Solve the equation
More Steps

Evaluate
3+5x=0
Move the constant to the right-hand side and change its sign
5x=0−3
Removing 0 doesn't change the value,so remove it from the expression
5x=−3
Divide both sides
55x=5−3
Divide the numbers
x=5−3
Use b−a=−ba=−ba to rewrite the fraction
x=−53
x=0x=−53
Solution
x1=−53,x2=0
Alternative Form
x1=−0.6,x2=0
Show Solution