SATMathematics Practice Test 1

Question : 5 of 58

Marks: +1, -0

$(x^2y-3y^2+5xy^2)-(-x^2y+3xy^2-3y^2)$
Which of the following is equivalent to the expression above?

Solution:

Only like terms, with the same variables and exponents, can be combined to determine the answer as shown here:

(x^2y-3y^2+5xy^2)-(-x^2y+3xy^2-3y^2)

=(x^2y-(-x^2y))+(-3y^2-(-3y^2))+(5xy^2-3xy^2)

=2x^2y+0+2xy^2

=2x^2y+2xy^2

Choices A, B, and D are incorrect and are the result of common calculation errors or of incorrectly combining like and unlike terms.

Go to Question:

Prev Question

Next Question