### Math 130 - Quiz #2 #### 1. Identify the degree of each term: a) \( 5x^3 \) b) \( 3x \) c) \( 6x^2 + xy - 5x^2y \) d) \( xy - 1 \) #### 2. Simplify each expression: a) \( x^7x^2y^3y^6 \) b) \( 3x^2(4y)^2 \) c) \( (3x)^2(4y) \) d) \( (-x^2)(-xy) \) e) \( 2(x+3)+4(x-5) \) f) \( (5x-3y) - 2(x+3y) \) g) \( (x-5)(x+4) \) #### 3. Solve for \( x \) or \( y \): a) \( x - 6 = -31 \) b) \( \frac{x}{4} = 5 \) c) \( -12x = 1 \) d) \( 2x - 40 = 50 \) e) \( 3x + 2 = 8 \) f) \( 1 - 5y = 101 \) g) \( x + 2 > -1 \) #### 4. Solve for \( y \): \( 3x + 2y + 8 = 0 \) #### 5. Solve the word problem: If you subtract eight from twice a number and the result is equal to negative twelve, what is that number