Determine the number of possible positive and negative real roots of the equation:
x - 4x + 5x² + 9x² + 2x 8
a 2 or 0 negative roots; 3 or 1 positive roots
b. 5, 3, or 1 negative roots;
4, 2 or 0 positive roots
c.
d.
2 or 1 neative roots; 3 or 2 positive roots
3 or 1 negative roots; 2 or 0 positive roots
The property of addition that is shown in the equation (a+bi)+(0+0i)=(a+bi) is the identity property of addition.
<h3>What is the
Identity property of
addition?</h3>
The identity property of addition states that when any number and 0 are added, the result will be the number itself.
The property of addition that is shown in the equation 
is the identity property of addition.
Learn more about Identity property of Addition:
brainly.com/question/1709448
Step-by-step explanation:
55x+6=120
55x=120-6
55x=114
X=114/55
Answer:
1
Step by step explanation
If you have ten candy’s and you have to give 5 to your sister now you have 5 candies left. Now that you have 5 ur mom wants 3 and u ate 1 now you have 1. The total that you gave and u ate is 9.
In order to answer this question, we must break this mathematical expression up into a series of mathematical operations (exponent, multiplication,division, addition, and/or subtraction):
"4 times a number" - The word "times" implies that we have to multiply 4 by an unknown number. We can simply label this unknown number as x.
"cubed" - In order to "cube" a number, we must raise it to the third power, or have an exponent of 3. Our unknown number of x now becomes x3 because we raised it to the third power.
"decreased by 7" - The word "decreased" implies that we must subtract 7 from the product of 4 multiplied by x3
With all of the information we now have, we can form an algebraic expression for this problem.
"4 times a number cubed decreased by 3" now becomes:
4x3 - 7
