Question Factor the expression Factor 9(8+7x) Evaluate 72+63xSolution 9(8+7x) Show Solution Find the roots Find the roots of the algebra expression x=−78Alternative Form x=−1.1˙42857˙ Evaluate 72+63xTo find the roots of the expression,set the expression equal to 0 72+63x=0Move the constant to the right-hand side and change its sign 63x=0−72Removing 0 doesn't change the value,so remove it from the expression 63x=−72Divide both sides 6363x=63−72Divide the numbers x=63−72Solution More Steps Evaluate 63−72Cancel out the common factor 9 7−8Use b−a=−ba=−ba to rewrite the fraction −78 x=−78Alternative Form x=−1.1˙42857˙ Show Solution