Astudent solves the following equation and
determines that the solution is -2. is the
student correct? explain.
3
a + 2
6
a? - 4
1
a - 2

The solution of the equation is (a = -2) and this can be determined by using the arithmetic operations.

Given :

Equation  -  

The following steps can be used to evaluate the given equation:

Step 1 - Write the equation.

Step 2 - Rewrite the above equation.

Step 3 - Take the LCM.

Step 4 - Further simplify the above expression.

Step 5 - Cancel out the denominator of both sides and then further simplify.

2a - 8 = 6a

a = -2

For more information, refer to the link given below:

link

No, the student is not correct

Step-by-step explanation:

Assuming the equation is  

We can see that  will render the equation undefined.

This is because there will be a division by zero error

Therefore cannot be a solution.

It is an extraneous solution solution.

Hence the student is incorrect

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.