For this case, we have the following equation (according to the comments):
First, we factor the quadratic expression in the denominator:
Then, we multiply both sides of the equation by (a-2) (a + 2):
Later, canceling similar terms we have:
We do distributive property on the left side of the equation:
By grouping variables and constant terms we have:
Rewriting we have:
Finally, by clearing "a" we have:
Note: the value of a is a extraneous solution because it makes the denominator of the original equation equal to zero.
Answer:
the student correct, but the value of a= -2 is an extraneous solution
Use the formula(b/2)^2 in order to create a new term. Solve for x by using this term to complete the square. The Answer is: x=3 +or- 4√2. Hope this helps
1. 5 dollars is 10% of allowance:
5=x*.10
x=50
$50
2.154 of 200 guests attended
154/200=.77
77%
3.24% of 400 picture memory card
400*.24=96
96 pictures
Answer:
7
Step-by-step explanation:
Two negatives cancel out, so you divide just like normal 42÷6 is 7
Answer:
y intercept: (0,3)
x intercept (3/7,0)
Step-by-step explanation:
The slope intercept form is y=mx+b, where m represents the slope of a line and b represents the y intercept. This makes the y intercept easy, just (0,3). The x intercept can be found by setting y to 0. Then, you are left with:
0=-7x+3
7x=3
x=3/7
And so the x intercept is (3/7,0). Hope this helps!
