# Algebra

posted by .

Hi! I was wondering if anyone might be willing to check my answers for these... I have a suspiscion they are wrong, but I don't have any correct answers to compare them against. If I got them wrong, would you mind giving a brief explanation? Thank you for your help! (x^2-1)+(-2x+3) (I got 2x+x^2+2).

(X^2-1) (x^2+-9) (I got x^3+-12)

(x^2+-9)-(x+-3) (I got x+12)

f(g(x)) F=3x-4 G=(-x^2)I got -3x^3+4x^2

f(g(x))F=-2x G+-2x^2+3 I got 4x^3+-6x

• Algebra -

Your answers almost seem like wild guesses. You appear to be in serious need of private tutoring until you grasp basic algebraic rules.

Why do you have both a + and- in front of the 9 in the first problem and in front of the 3 in the second problem?

(x^2-1) (x^2-9) = x^4 - 10x^2 +9

x^2 -9 -(x -3) = x^2 -x -6

If f=3x-4 and g=(-x^2)
f[g(x)] = -3x^2 -4
g[f(x)] = -(3x-4)^2 =-9x^2 +24x -16

## Similar Questions

1. ### Math

75 + -63 + 7( 115/ -5 + (-8)2 ) -63 is -6 to the third power and (-8)2 is (-8)to the 2nd power. I got 15913 I think that that is wrong and my calculater wouldn't fit all the numbers so I don't know how to check it! Can you please try …
2. ### Math for Trish To Help Me With

Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a – f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x^2 - 7x + 10 d.) 2x^2 - 9x – 18 e.) 2ax + 6bx + ay + 3by …
3. ### basic Integration

I have three questions which I apparently have 'wrong' according to the book, but I've done lots of other questions which I've gotten right using the same method and I have triple checked these answers for these three questions so …
4. ### Algebra

Hi, could someone possibly check my answers to these algebra questions?
5. ### Chemistry (URGENT)

I have a test soon. If you can help me with these questions, that would be great. 1. Define and describe the following. a)Alkaline - metal - base b)Corrosive - burn/eat away - acid c)Caustic - harsh - both?
6. ### English

Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. Are you finished?
7. ### Math

Please Check My Answer I don't know if they are right or wrong and if they are wrong can u give me the correct answers. ?
8. ### English

Formative Test Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. You will have 5 minutes. Are you finished?
9. ### math

a mathematics question contained 20 items. every wrong answer scores -2marks, every correct answer scores 4marks and no mark for no answer. (a) find the minimum possible score (b) Tembo had 10 correct answers, 8 wrong answers and 2 …
10. ### Maths

In a test for every 6 answers carlene got correct, she got 2 wrong. She got 54 correct answers. 1 how many questions did the test have?

More Similar Questions

Post a New Question