# Math

What is the simplest form of the expression (5x + 3xy + 4y) + (4x – 2xy – 2y)?

A. x + xy + 2y
B. x^2 + xy + 2y
C. 9x + 5xy + 2y
D. 9x + 5xy + 6y
E. 9x + xy + 2y

2.
5y + 2z + 3x^2 – (2y – 2z + 4x) is equivalent to:

F. 7y + 4z + 3x2 – 4x
G. 3y + 3x2 – 4x
H. 3y + 4z + 3x2 – 4x
J. 3y + 4z + 7x
K. 3y + 4z + 7x2

3.
Which of the following polynomials is equivalent to (x – 1)(x + 1)(x – 1)?

A. x2 – x + 1
B. x2 – x – 1
C. x3 – x2 – x + 1
D. x3 – x2 – x – 1
E. x3 – 2x2 – 2x + 1

4.
What is the product (2a + 6)2?

F. 2a2 + 12a + 36
G. 4a2 + 12a + 36
H. 4a2 + 36
J. 4a2 + 24a + 36
K. 4a2 – 36

5.
Among the following arithmetic operations, which could the symbol ♣ represent given that the equation (6 ♣ 1)3 – (4 ♣ 1)2 = 200 is true?

I. Subtraction
II. Multiplication
III. Division

A. II only
B. III only
C. II and III only
D. I and III only
E. I, II, and III

1. 👍 0
2. 👎 1
3. 👁 189
1. no thoughts on any of these?

1. 👍 0
2. 👎 0
👨‍🏫
oobleck

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