Question Simplify the expression −128−38b Evaluate 77−38b−205Solution −128−38b Show Solution Factor the expression −2(64+19b) Evaluate 77−38b−205Subtract the numbers −128−38bSolution −2(64+19b) Show Solution Find the roots b=−1964Alternative Form b≈−3.368421 Evaluate 77−38b−205To find the roots of the expression,set the expression equal to 0 77−38b−205=0Subtract the numbers −128−38b=0Move the constant to the right-hand side and change its sign −38b=0+128Removing 0 doesn't change the value,so remove it from the expression −38b=128Change the signs on both sides of the equation 38b=−128Divide both sides 3838b=38−128Divide the numbers b=38−128Solution More Steps Evaluate 38−128Cancel out the common factor 2 19−64Use b−a=−ba=−ba to rewrite the fraction −1964 b=−1964Alternative Form b≈−3.368421 Show Solution