Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−19d
Evaluate
d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d
Write the repeated addition as multiplication
d−d×20
Use the commutative property to reorder the terms
d−20d
Collect like terms by calculating the sum or difference of their coefficients
(1−20)d
Solution
−19d
Show Solution
Find the roots
d=0
Evaluate
d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d
To find the roots of the expression,set the expression equal to 0
d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
0−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Removing 0 doesn't change the value,so remove it from the expression
−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−d−d
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)d
Subtract the numbers
−2d
−2d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−2d−d
Collect like terms by calculating the sum or difference of their coefficients
(−2−1)d
Subtract the numbers
−3d
−3d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−3d−d
Collect like terms by calculating the sum or difference of their coefficients
(−3−1)d
Subtract the numbers
−4d
−4d−d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−4d−d
Collect like terms by calculating the sum or difference of their coefficients
(−4−1)d
Subtract the numbers
−5d
−5d−d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−5d−d
Collect like terms by calculating the sum or difference of their coefficients
(−5−1)d
Subtract the numbers
−6d
−6d−d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−6d−d
Collect like terms by calculating the sum or difference of their coefficients
(−6−1)d
Subtract the numbers
−7d
−7d−d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−7d−d
Collect like terms by calculating the sum or difference of their coefficients
(−7−1)d
Subtract the numbers
−8d
−8d−d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−8d−d
Collect like terms by calculating the sum or difference of their coefficients
(−8−1)d
Subtract the numbers
−9d
−9d−d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−9d−d
Collect like terms by calculating the sum or difference of their coefficients
(−9−1)d
Subtract the numbers
−10d
−10d−d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−10d−d
Collect like terms by calculating the sum or difference of their coefficients
(−10−1)d
Subtract the numbers
−11d
−11d−d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−11d−d
Collect like terms by calculating the sum or difference of their coefficients
(−11−1)d
Subtract the numbers
−12d
−12d−d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−12d−d
Collect like terms by calculating the sum or difference of their coefficients
(−12−1)d
Subtract the numbers
−13d
−13d−d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−13d−d
Collect like terms by calculating the sum or difference of their coefficients
(−13−1)d
Subtract the numbers
−14d
−14d−d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−14d−d
Collect like terms by calculating the sum or difference of their coefficients
(−14−1)d
Subtract the numbers
−15d
−15d−d−d−d−d=0
Subtract the terms
More Steps
Simplify
−15d−d
Collect like terms by calculating the sum or difference of their coefficients
(−15−1)d
Subtract the numbers
−16d
−16d−d−d−d=0
Subtract the terms
More Steps
Simplify
−16d−d
Collect like terms by calculating the sum or difference of their coefficients
(−16−1)d
Subtract the numbers
−17d
−17d−d−d=0
Subtract the terms
More Steps
Simplify
−17d−d
Collect like terms by calculating the sum or difference of their coefficients
(−17−1)d
Subtract the numbers
−18d
−18d−d=0
Subtract the terms
More Steps
Simplify
−18d−d
Collect like terms by calculating the sum or difference of their coefficients
(−18−1)d
Subtract the numbers
−19d
−19d=0
Change the signs on both sides of the equation
19d=0
Solution
d=0
Show Solution