Hello,
There is one solution with multiplicity 2.
Answer:
whats x?
Step-by-step explanation:
Answer:
(9-10x)(9+10x) (I think this is the answer but I'm not one hundred percent sure)
Step-by-step explanation:
First, you can recognize that both numbers (-100x^2 and 81) are a difference of squares, in which means that they both can be square routed. Then, plug in the square routes of the numbers into (9-10x)(9+10x). 9 is the square route of 81 and 10 is the square route of 100. Make sure that when you put the numbers in the parenthesis that there is one negative and positive number since a negative multiplied by a positive makes a negative, hence making 100 negative. I hope that helped.
To solve a problem about percent of change, you need to divide the amount of change by the original amount. To find the amount of change, subtract the initial amount from the final amount. The formula for percent of change can be written:
Percent of Change = (Final amount - Initial amount)/Initial amount
For example, If you start with 100 and end with 120, you would write:
Percent of change = (120 - 100)/100
Percent of change = 20/100
Percent of change = .2
Since you want a percent, you need to change the decimal to a percent. To do this, move the decmial place 2 places to the right and add a percent sign.
Percent of change = 20%
