The factored form of the expression
is 
The expression x^2 + 9 has no real roots hence cannot be factored
Quadratic equations are equations with a degree of 2.
Given the quadratic function 
For the function 

Using the difference of two squares:

For the expression x^2 + 9
The expression x^2 + 9 has no real roots hence cannot be factored
Learn more on factorization here: brainly.com/question/20293447
5/100 * 4 = 20/100 reduces to 1/5
Answer:
180...
Step-by-step explanation:
15 x 12 = 180
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I know the best answer ever (*says sarcastically*)