Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−4x+80
Evaluate
−4x−20
Use b−a=−ba=−ba to rewrite the fraction
−4x−20
Reduce fractions to a common denominator
−4x−420×4
Write all numerators above the common denominator
4−x−20×4
Multiply the numbers
4−x−80
Solution
−4x+80
Show Solution
Find the roots
x=−80
Evaluate
−4x−20
To find the roots of the expression,set the expression equal to 0
−4x−20=0
Use b−a=−ba=−ba to rewrite the fraction
−4x−20=0
Subtract the terms
More Steps
Simplify
−4x−20
Reduce fractions to a common denominator
−4x−420×4
Write all numerators above the common denominator
4−x−20×4
Multiply the numbers
4−x−80
Use b−a=−ba=−ba to rewrite the fraction
−4x+80
−4x+80=0
Simplify
−x−80=0
Move the constant to the right side
−x=0+80
Removing 0 doesn't change the value,so remove it from the expression
−x=80
Solution
x=−80
Show Solution