Question
Simplify the expression
−21x6
Evaluate
7x4(−3x2)
Multiply the numbers
More Steps

Evaluate
7(−3)
Multiplying or dividing an odd number of negative terms equals a negative
−7×3
Multiply the numbers
−21
−21x4×x2
Solution
More Steps

Evaluate
x4×x2
Use the product rule an×am=an+m to simplify the expression
x4+2
Add the numbers
x6
−21x6
Show Solution

Find the roots
x=0
Evaluate
(7x4)(−3x2)
To find the roots of the expression,set the expression equal to 0
(7x4)(−3x2)=0
Multiply the terms
7x4(−3x2)=0
Multiply the terms
More Steps

Evaluate
7x4(−3x2)
Multiply the numbers
More Steps

Evaluate
7(−3)
Multiplying or dividing an odd number of negative terms equals a negative
−7×3
Multiply the numbers
−21
−21x4×x2
Multiply the terms
More Steps

Evaluate
x4×x2
Use the product rule an×am=an+m to simplify the expression
x4+2
Add the numbers
x6
−21x6
−21x6=0
Change the signs on both sides of the equation
21x6=0
Rewrite the expression
x6=0
Solution
x=0
Show Solution
