Question Factor the expression 9(10r−211) Evaluate 90r−1899Solution 9(10r−211) Show Solution Find the roots r=10211Alternative Form r=21.1 Evaluate 90r−1899To find the roots of the expression,set the expression equal to 0 90r−1899=0Move the constant to the right-hand side and change its sign 90r=0+1899Removing 0 doesn't change the value,so remove it from the expression 90r=1899Divide both sides 9090r=901899Divide the numbers r=901899Solution r=10211Alternative Form r=21.1 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix