Answer:
a) The possible solutions are:
x=7 and x=-3
b)The extraneous solution
is x=
Step-by-step explanation:
The last step gives us the possible solutions.
By the zero product property,
This implies that:
The original equation is
We substitute x=-3 to get;
This not true, therefore x=-3 is an extraneous solution.
We substitute x=7
Therefore x=7 is the only solution.
Slope of a function is defined as the rate of change of a function. It determine the unit price of values or amount traveled in unit time.
<h3>Slope of a function</h3>
Slope of a function is defined as the rate of change of a function. It determine the unit price of values or amount traveled in unit time.
The formula for expressing the slope of a function is given as;
f'(x) = f(b)-f(a)/b-a
a and b are the intervals
The slope can also be expressed as a function of its coordinate (x, y)
Slope = y2-y1/x2-x1
Learn more on slope here: brainly.com/question/1884491
Answer:
X equals 10.
8x - x = 70
Step-by-step explanation:
8 x 10 = 80
80 - 10 = 70
25pq+13pq-6-35pq+4
-6+4+25Pq+13pq-35pq
-2+3pq
They do all EXCEPT D, but the best answer is A because one can solve the system of equations this way