Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−7x4−3x3
Evaluate
x3(−7x−3)
Apply the distributive property
x3(−7x)−x3×3
Multiply the terms
More Steps
Evaluate
x3(−7x)
Use the commutative property to reorder the terms
−7x3×x
Multiply the terms
More Steps
Evaluate
x3×x
Use the product rule an×am=an+m to simplify the expression
x3+1
Add the numbers
x4
−7x4
−7x4−x3×3
Solution
−7x4−3x3
Show Solution
Find the roots
x1=−73,x2=0
Alternative Form
x1=−0.4˙28571˙,x2=0
Evaluate
(x3)(−7x−3)
To find the roots of the expression,set the expression equal to 0
(x3)(−7x−3)=0
Calculate
x3(−7x−3)=0
Separate the equation into 2 possible cases
x3=0−7x−3=0
The only way a power can be 0 is when the base equals 0
x=0−7x−3=0
Solve the equation
More Steps
Evaluate
−7x−3=0
Move the constant to the right-hand side and change its sign
−7x=0+3
Removing 0 doesn't change the value,so remove it from the expression
−7x=3
Change the signs on both sides of the equation
7x=−3
Divide both sides
77x=7−3
Divide the numbers
x=7−3
Use b−a=−ba=−ba to rewrite the fraction
x=−73
x=0x=−73
Solution
x1=−73,x2=0
Alternative Form
x1=−0.4˙28571˙,x2=0
Show Solution