All ACT Math Resources
Example Questions
Example Question #2 : How To Find The Square Of A Sum
Which of the following is the square of ?
You may assume both and are positive.
Use the square of a sum pattern, substituting for and for in the pattern:
or
Example Question #4 : Squaring / Square Roots / Radicals
Which of the following is the square of ?
Multiply vertically as follows:
Example Question #1 : How To Find The Square Of A Sum
Which of the following is the square of ?
The correct answer is not given among the other responses.
The correct answer is not given among the other responses.
Use the square of a sum pattern, substituting for and for in the pattern:
This is not equivalent to any of the given choices.
Example Question #2 : Squaring / Square Roots / Radicals
Which of the following is the square of ?
Use the square of a sum pattern, substituting for and for in the pattern:
Example Question #6 : Square Of Sum
Which of the following is the square of ?
Use the square of a sum pattern, substituting for and for in the pattern:
Example Question #821 : Algebra
Which real number satisfies ?
Simplify the base of 9 and 27 in order to have a common base.
(3x)(9)=272
= (3x)(32)=(33)2
=(3x+2)=36
Therefore:
x+2=6
x=4
Example Question #2 : Factoring Squares
Which of the following is a factor of ?
The terms of have as their greatest common factor, so
is a prime polynomial.
Of the five choices, only is a factor.
Example Question #822 : Algebra
Simplify
The easiest way to approach this problem is to break everything into exponents. is equal to and 27 is equal to . Therefore, the expression can be broken down into . When you cancel out all the terms, you get , which equals .
Example Question #2 : Squaring / Square Roots / Radicals
Which of the following expression is equal to
When simplifying a square root, consider the factors of each of its component parts:
Combine like terms:
Remove the common factor, :
Pull the outside of the equation as :
Example Question #3 : Squaring / Square Roots / Radicals
Which of the following is equal to the following expression?
First, break down the components of the square root:
Combine like terms. Remember, when multiplying exponents, add them together:
Factor out the common factor of :
Factor the :
Combine the factored with the :
Now, you can pull out from underneath the square root sign as :