You are here:

# Algebra/Algebra 2

Question
Hi- I am wondering if you would be able to help me with the following problems. I kind of get the basics but then mess up. If you would be able to explain the steps taken to complete the question it would be greatly appreciated!

1) P(x)=x^3+4x^2-8x-6; a=-2
2) P(x)=x^3-7x^2+15x-9; a=3
3) P(x)=6x^3-x^2+4x+3; a=3
4) P(x)=2x^3+4x^2-10x-9; a=3

Thanks Again!

It would appear that we are asked to find P(a) for each problem.
To do this, put in the value of a for x.

Using -2²=4, -2³=-8, 3²=9, and 3³=27 gives ...

1) P(-2) = -8 + 4*4 -8(-2) - 6 = -8 + 16 + 16 - 6 = 18;
2) P(3) = 27 - 7*9 + 15*3 - 9 = 27 - 63 + 45 - 9 = 0;
3) P(3) = 6*27 - 9 + 4*3 + 3 = 162 - 9 + 12 + 3 = 168; and
4) P(3) = 2*27 + 4*9 - 10*3 - 9 = 54 + 36 - 30 - 9 = 51.

Algebra

Volunteer

#### Scott A Wilson

##### Expertise

Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.

##### Experience

I have solved story problems, linear equations, parabolic equations. I have also solved some 3rd order equations and equations with multiple variables.

Publications
Documents at Boeing in assistance on the manufacturiing floor.

Education/Credentials
MS at math OSU in mathematics at OSU, 1986. BS at OSU in mathematical sciences (math, statistics, computer science), 1984.

Awards and Honors
Both my BS and MS degrees were given with honors.

Past/Present Clients
Students in a wide variety of areas since the 80's; over 1,000 of them have been in algebra.