1
Multiply 3x^2 - 3x - 7 by 2x + 4.
Chapter 8 · Multiplication
Chapter challenge
Ten problems drawn from every lesson in the chapter. Get each one right on your first try for a perfect score. A new set is drawn each time.
0first-try
0of 10 done
From Multiplying Polynomials, exercise 15
Multiply, and check by letting each letter equal 1 (or 2).
From Multiplying Polynomials, exercise 34
Expand (multiply out and combine like terms).
2
Expand (2a - b + 3)^2.
From Multiplying Polynomials, exercise 17
Multiply, and check by letting each letter equal 1 (or 2).
3
Multiply a^2x^2 - 2a^2x + 4a^2 by ax + 2a.
From Polynomial Times Monomial, exercise 19
Perform the multiplication indicated.
4
-3x(ax - bx + 3cx^2)
From Multiplying Polynomials, exercise 35
Expand (multiply out and combine like terms).
5
Expand (2x - 3ay)^3.
From Polynomial Times Monomial, exercise 4
Multiply.
6
Multiply 7xy - z by 3xy.
From Multiplying Monomials, exercise 12
Multiply. Try to do these in your head.
7
(6abc)^2
From Multiplying Polynomials, exercise 20
Multiply, and check by letting each letter equal 1 (or 2).
8
Multiply a^2 - \tfrac{1}{2}a + \tfrac{1}{4} by a^2 - a + \tfrac{1}{3}.
From Polynomial Times Monomial, exercise 2
Multiply.
9
Multiply 7x^2 - 5 by 3x^3.
From Polynomial Times Monomial, exercise 10
Multiply.
10
Multiply 7x^3 - 8x^2 - 12x + 6 by -\tfrac{3}{4}x^3.