SOLUTION: I have about 7 questions for my finals out of 66 could anyone please help me. Questions: 1) Evaluate the polynomial for x=-3 3x^2-3x+6 when x=____? When x=-3, 3x^2-3x+6=_

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I have about 7 questions for my finals out of 66 could anyone please help me. Questions: 1) Evaluate the polynomial for x=-3 3x^2-3x+6 when x=____? When x=-3, 3x^2-3x+6=_      Log On


   

Question 636325: I have about 7 questions for my finals out of 66 could anyone please help me.
Questions:
1) Evaluate the polynomial for x=-3 3x^2-3x+6 when x=____?
When x=-3, 3x^2-3x+6=______?
(Simplify)
2) Find the following. square root of 16 at the top of the tip of the little line √(-7)^16
(Simplify)
3) Divide. (20b^3+7b^2+22b+27)÷ (4b+3) Choose the correct answer below
a) 5b^2+2b+7
b) 5b^2-2b-7-6/4b+3
c) 5b^2-2b+7+6/4b+3
d) 5b+7
4) Add. (2x^2-9xy+y^2) + (-6x^2-6xy-y^2) + (x^2+xy-4y^2)
The answer is________?
5) Simplify by removing factors of 1
m^2-49
______ =
(m+7)2
The simplified form is _____? "its supposed to look m^2-49 over (m+7)2 ="
6) For the following equation, state the value of the discriminant and then describe the nature of the solutions. 6x^2-5x+1=0
What is the value of the discriminant?
Which one of the statements below is correct?
a) The equation has one real solution
b) The equation has two imaginary solutions
c) The equation has two real solutions
7) Find all numbers for which the rational expression is undefined
The numbers for which the rational expression is undefined are____?
(Use a comma to separate answers)
t^3-3t
______ It should look like t^3-3t over t^2-9
t^2-9

Found 2 solutions by solver91311, ewatrrr:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


1) , evaluate

Just substitute the given value for in the definition of your function and then do the arithmetic.



You can do your own arithmetic.

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

look it over ...

1) 3%2A%28-3%29%5E2+-+3%2A%28-3%29+%2B+6+=+27+%2B+9+%2B+6+=+42

2)sqrt%28%28-7%29%5E16%29+=+7%5E8

3) 4b+3 |(20b^3+7b^2+22b+27

4) (2x^2-9xy+y^2) 

 + (-6x^2-6xy-y^2)

    + (x^2+xy-4y^2)

     -3x^2 - 14xy - 4y^2

5) %28m-7%29%2F%28m%2B7%29

6) 6x^2-5x+1=0  sqrt%285%5E2+-+4%2A6+%2A+1%29+=+sqrt%281%29 = ±1,  2 real roots 

7) t%28t%5E2-3%29%2F%28t%5E2-9%29  Denominator CANNOT = 0, underfined for x = ± 3