b) left(-frac{1}{3} x yright)+left(+frac{4}{9} x yright)+left(-frac{1}{9} x yright)

Question

Accepted Answer

Step:1 ：The given expression is (-frac{1}{3} x y + frac{4}{9} x y - frac{1}{9} x y).Step:2 ：The expression contains three terms, all of which are products of x and y with different coefficients.Step:3 ：To simplify the expression, we need to add the coefficients of the like terms. In this case, the like terms are the terms that contain the product of x and y.Step:4 ：The sum of the coefficients of the like terms is 0.Step:5 ：Therefore, the simplified form of the expression (-frac{1}{3} x y + frac{4}{9} x y - frac{1}{9} x y) is 0.Step:6 ：(boxed{0}) is the final answer.

Answer

Step: 1 ：The given expression is (-frac{1}{3} x y + frac{4}{9} x y - frac{1}{9} x y).Step: 2 ：The expression contains three terms, all of which are products of x and y with different coefficients.Step: 3 ：To simplify the expression, we need to add the coefficients of the like terms. In this case, the like terms are the terms that contain the product of x and y.Step: 4 ：The sum of the coefficients of the like terms is 0.Step: 5 ：Therefore, the simplified form of the expression (-frac{1}{3} x y + frac{4}{9} x y - frac{1}{9} x y) is 0.Step: 6 ：(boxed{0}) is the final answer.

b) $\left(-\frac{1}{3} x y\right)+\left(+\frac{4}{9} x y\right)+\left(-\frac{1}{9} x y\right)$

Answer

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