1. Multiply 2ab(−a+2b+3)

Question

A. −2a+2ab+3b
B. 8ab
C. −2a2b+4ab2+6ab
D. 8a2b2
2. Simplify the expression using multiplication.
xy(3x^2+2x−3y)
A. 3x^3+2xy−3y
B. 3x^3y+2x^2y−3xy^2
C. 3x^3+2x^2−3y^2
D. 2x^3y^2
3. Multiply: (x−5) (x+3)
A. X^2−15
B. X^2−2x−15
C. X^2+2x−15
D. X^2−2x+15
4. The area of a rectangle is given by the expression (x+3)(4x−2) . Which of the following is an equivalent expression for the area?
A. 13x−2
B. 14x−6
C. 4x^2+10x−6
D. 4x^2+14x+6
5. Multiply: (x+2)(x2−3x+4)
A. 2x^2−6x+8
B. X^2−2x+6
C. X^3−x^2−2x+8
D. X^3+5x^2+10x+8

Answer 1

1. C. −2a2b+4ab2+6ab
2. B. 3x^3y+2x^2y−3xy^2
3. A. X^2−15
4. C. 4x^2+10x−6
5. D. X^3+5x^2+10x+8