Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
85a
Evaluate
43a−81a
Collect like terms by calculating the sum or difference of their coefficients
(43−81)a
Solution
More Steps
Evaluate
43−81
Reduce fractions to a common denominator
4×23×2−81
Multiply the numbers
83×2−81
Write all numerators above the common denominator
83×2−1
Multiply the numbers
86−1
Subtract the numbers
85
85a
Show Solution
Find the roots
a=0
Evaluate
43a−(81a)
To find the roots of the expression,set the expression equal to 0
43a−(81a)=0
Multiply the terms
43a−81a=0
Subtract the terms
More Steps
Simplify
43a−81a
Collect like terms by calculating the sum or difference of their coefficients
(43−81)a
Subtract the numbers
More Steps
Evaluate
43−81
Reduce fractions to a common denominator
4×23×2−81
Multiply the numbers
83×2−81
Write all numerators above the common denominator
83×2−1
Multiply the numbers
86−1
Subtract the numbers
85
85a
85a=0
Solution
a=0
Show Solution