Question Simplify the expression 42n−11140 Evaluate 42n−20−11120Solution 42n−11140 Show Solution Factor the expression 2(21n−5570) Evaluate 42n−20−11120Subtract the numbers 42n−11140Solution 2(21n−5570) Show Solution Find the roots n=215570Alternative Form n=265.2˙38095˙ Evaluate 42n−20−11120To find the roots of the expression,set the expression equal to 0 42n−20−11120=0Subtract the numbers 42n−11140=0Move the constant to the right-hand side and change its sign 42n=0+11140Removing 0 doesn't change the value,so remove it from the expression 42n=11140Divide both sides 4242n=4211140Divide the numbers n=4211140Solution n=215570Alternative Form n=265.2˙38095˙ Show Solution