1
8abc, 3b^2c and 12c^2
Chapter 15 · Highest Common Factor and Lowest Common Multiple
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 Lowest Common Multiple, exercise 9
Monomials.
From Highest Common Factor, exercise 22
Polynomials. Factor each one first. You can type the H.C.F. factored or multiplied out.
2
ab+3b+ac+3c and 2ab+6b-2ac-6c
From Lowest Common Multiple, exercise 16
Polynomials. Factor everything first. A factored answer like x(x - 3)(x + 3) is the easy way to type it.
3
3x+3z and 6a^2x+6a^2z
From Highest Common Factor, exercise 12
Monomials. Leave your answer as a single term like 6x^3.
4
125m^7n^5p and 100ng^4
From Lowest Common Multiple, exercise 26
Polynomials. Factor everything first. A factored answer like x(x - 3)(x + 3) is the easy way to type it.
5
2x^3-2x, 3x^4+15x^3-18x^2 and x^2-36
From Lowest Common Multiple, exercise 23
Polynomials. Factor everything first. A factored answer like x(x - 3)(x + 3) is the easy way to type it.
6
ac-2bd+2ad-bc and a^2+ab-2b^2
From Lowest Common Multiple, exercise 6
Numbers first.
7
128, 160 and 200
From Highest Common Factor, exercise 19
Polynomials. Factor each one first. You can type the H.C.F. factored or multiplied out.
8
2c^3+12c^2+18c and c^3-2c^2-15c
From Lowest Common Multiple, exercise 11
Monomials.
9
20, 18xy^4 and 27ax^3y
From Highest Common Factor, exercise 14
Monomials. Leave your answer as a single term like 6x^3.
10
9xy^4, 54x^5y and 15x^4y^5