All ISEE Middle Level Math Resources
Example Questions
Example Question #111 : Squares / Square Roots
Evaluate:
Fisrt we need to find the square root of each number and simplify them as follows:
Now we can insert the square roots into the equation:
Example Question #112 : Squares / Square Roots
If , evaluate .
Since , we can substitute it into the given equation:
Now we should find the square root of each number and simplify:
Example Question #113 : Squares / Square Roots
Evaluate:
First, find the square root of the numbers:
Then, solve the equation:
Example Question #114 : Squares / Square Roots
Evaluate:
First find the square root of each number:
Now we can solve it accordingly:
Example Question #111 : Squares / Square Roots
Which of the following is true about ?
We know:
Therefore:
Example Question #112 : Squares / Square Roots
If is a real number, simplify .
is undefined for the set of all real numbers.
is undefined for the set of all real numbers.
is always a positive number for the set of real numbers, so is always a negative number for the set of real numbers. Since negative numbers do not have square roots in the real number system, is undefined in the set of real numbers and therefore is undefined as well.
Example Question #113 : Squares / Square Roots
Find :
First, find the square root of each expression:
Now solve the equation for :
Example Question #111 : Squares / Square Roots
Find :
Example Question #112 : Squares / Square Roots
Evaluate:
First find the square roots:
Plug back in and add:
Example Question #116 : Squares / Square Roots
Evaluate:
First find the square roots:
Plug these back into the equation and solve: