Algebra Questions for the Accuplacer
Here are some free algebra questions for the Accuplacer.
Example 1:
Polynomials are algebraic expression that contain more than one term. You will definitely have questions on the exam about multiplying polynomials.
(2x - 3y)2 =
Solution 1:
When multiplying polynomials, you should use the F-O-I-L method.
This means that you multiply the variables two at a time from each of the two parts of the equation in the parentheses in this order:
First - Outside - Inside - Last
(2x - 3y)2 =
(2x - 3y)(2x - 3y)
So, the first variables in each set of parentheses are 2x and 2x
FIRST: 2x x 2x = 4x2
The variables on the outside of each set of parentheses are 2x and 3y
OUTSIDE: 2x x - 3y = -6xy
The variables on the inside of each set of parentheses are -3y and 2x
INSIDE: -3y x 2x = - 6xy
The last variables in each set of parentheses are -3y and -3y
LAST: - 3y x - 3y = 9y2
Then we add all of the above parts together to get:
4x2- 6xy - 6xy + 9y2 =
4x2+ 9y2 - 12xy
Example 2:
Algebra questions on the Accuplacer Test will also include inequalities problems. Inequalities contain the less than or greater than signs.
31 - 2/3X > 27, then X < ?
Solution 2:
In order to solve inequalities, deal with the whole numbers on each side of the equation first:
31 - 2/3X > 27 =
(31 - 31) - 2/3X > (27 - 31) =
- 2/3X > - 4
Then deal with the fraction:
- 2/3X > - 4 =
3 x - 2/3X > - 4 x 3 =
-2X > -12
Then deal with the remaining whole numbers:
-2X > -12 =
-2X ÷ 2 > -12 ÷ 2 =
-X > -6
Then, deal with the negative number:
-X > -6 =
-X + 6 > -6 + 6 =
-X + 6 > 0
Finally, isolate the unknown variable as a positive number:
-X + 6 > 0 =
- X + X + 6 > 0 + X =
6 > X =
X < 6
Example 3:
You will also be asked to divide polynomials on the Accuplacer Test. In order to solve this type of problem, you must do long division of the polynomial:
(x2 - x - 6) ÷ (x - 3) =
Solution 3:
Remember, you must to long division of the polynomial until you have no remainder:
x + 2x - 3)x2 - x - 6
-(x2 - 3x)
_______
2x - 6
2x - 6
______
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Algebra Questions for the Accuplacer