Math A
Practice with Factoring Difference of Two Perfect Squares
Choose:
Explanation What times itself will give x²? Answer is x. What times itself will give 25? Answer is 5. This problem is the difference of two squares. The factors are (x+5)(x-5).
Explanation What times itself will give 16? Answer is 4. What times itself will give x²? Answer is x. This problem is the difference of two squares. The factors are (4-x)(4+x).
Explanation What times itself will give 9y²? Answer is 3y. What times itself will give 49? Answer is 7. This problem is the difference of two squares. The factors are (3y-7)(3y+7).
Challenger
Explanation What times itself will give (x-1)²? Answer is (x-1). What times itself will give 4? Answer is 2. This problem is the difference of two squares. The factors are ((x-1)-2) ((x-1)+2). Simplying these factors gives (x-3)(x+1).
Caldwell
