Math(Please help)
posted by Hannah .
For f(x) = 2x3 and g(x)= 2x^2 find,
a) (f + g)(x) = My answer is
2x^2 + 2x  3. Is this correct?
b) (f  g)(x) How would you do this?
c) (f X g)(2) I do not know what to do since the 2 is there.

Math(Please help) 
Hannah
Sorry I wanted to add something else!
Determine whether the graph of the following equation is symmetric with respect to the xaxis, the yaxis, and the origin.
y^2  x  49 = 0
For x axis y^2  x  9 = 0 is not the same as the first equation so it is not symmetrical to the xaxis. Correct?
For the yaxis y^2 + x  49 = 0 is not the same as the first equation so it is not symmetrical to the yaxis. Correct?
For the origin y^2 + x  49 = 0 is not the same as the first equation so itis not symmetrical to the origin either. Am I correct? 
Math(Please help) 
Henry
a. (f + g)(x) = f(x) + g(x) =(2x  3 +
2x^2.
b. (f  g)(x) = f(x)  g(x) = (2x 3)
 2x^2.
c. (f * g)(x) = f(x) * g(x) = (2x 3)
* 2x^2 = 4x^3  6x^2.
y^2  x  49 = 0.
Solve for x:
x = y^2  49 = 0,
This x parabola is the difference of 2 squares:
(y + 7) (y  7) = 0,
y + 7 = 0,
y = 7,
y  7 = 0,
y = 7.
Axis of symmetry: y = (7+7)/2 = 0,
y = 0 is a hor line which lies on the x axis. 
Math(Please help) 
Henry
c. (f.g)(2) = f(2) * g(2) = (2*23) *
(2 * 2^2) = 1 * 8 = 8.
Respond to this Question
Similar Questions

drbob222 math,correction
i made some corrections for the previous postage can you check those when you get a chance please. Also for this one: my options of answers are: A)2y + 6/3 B)3x 6 /2 C)2 + 2y D)2/3y + 6 Directions: Solve for x: 3x  2y =6 3x  2y … 
math help
could some one please explain to me reciprocal how to find the reciprocal my math home work says find the reciprocal of (1/8)(13/2)(4) reciprocal you change over so is the 1/8 8/1 or would it be 8/1 13/2 would be 2/13 4 would be … 
math,correction ,
can someone correct these for me please... Remove the parentheses. (3x+5y) My answer: 3x5y Find the value of the polynomial x^2+3x1 when x=4 My answer: 5 multiply. 10x(4x7) my answer: 40x^270x all correct. awsome.....thank … 
math,correction
Can someone correct these for me please.. Find the value of the polynomial 8x – 6 when x = 1 and when x = –1. My answer: So when x = 1 the value of the polynomial is: 2And when x = 1 the value of the polynomial is: 14 Multiply. … 
math
If I am making a map that has a distance of 200 mm, and the actual distance is 700m. How do I find the calculations to know how much each mm is? 
Math (Algebra)
Can someone please check my answer? 9[73(9561)]= 2061 if my answer is incorrect could you tell me where I missed? 
math
By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions. If the correct answer is 7.08809, which of the following … 
Algebra
I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks! The equation is: .05x.6(x+2)=.08 Please show the work as well as the answer. Thanks … 
Algebra
Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation … 
Spanish: check answers
16. Which sentence is correct? A. Yo no entiendo a la maestra. *B. Yo no entiendo a este libro. Possessive Adjectives 17. What would be the correct PA in Spanish?