Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−83x
Evaluate
x(81−21)
Subtract the numbers
More Steps
Simplify
81−21
Reduce fractions to a common denominator
81−2×44
Multiply the numbers
81−84
Write all numerators above the common denominator
81−4
Subtract the numbers
8−3
Use b−a=−ba=−ba to rewrite the fraction
−83
x(−83)
Solution
−83x
Show Solution
Find the roots
x=0
Evaluate
x(81−21)
To find the roots of the expression,set the expression equal to 0
x(81−21)=0
Subtract the numbers
More Steps
Simplify
81−21
Reduce fractions to a common denominator
81−2×44
Multiply the numbers
81−84
Write all numerators above the common denominator
81−4
Subtract the numbers
8−3
Use b−a=−ba=−ba to rewrite the fraction
−83
x(−83)=0
Use the commutative property to reorder the terms
−83x=0
Change the signs on both sides of the equation
83x=0
Solution
x=0
Show Solution