algebra

1)Write the expression 9n^6+7n^3-6 in quadratic form,if possible
A.9(n^3)^3+7n^3-6
B.9(n^2)^3+7(n^2)-6
C.9(n^3)^2+7(n^3)-6
D.not possible
I'm thinking C on this one but im not sure

2)solve b^4+2b^2-24=0
A.-2,-square root of 6,square root of 6,2
B.-square root of 6,2,2i,i square root of 6
C.2,2,-isquare root of 6
D.-2i,2i,- square root of 6,square root of 6

3)If f(x)= x^2+1 and g(x)= x-2,find f[g(x)]
A.x^2-4x+5
B.x^2-1
C.x^2-3
D.x^3-2x^2+x-2
my answer is B

4)Find the inverse of f(x)= 2x-7
=f-1(x)= x+7/2

5)Determine which pair of functions are inverses:
A.f(x)= 3x-1;g(x)= 1/3x-1
B.f(x)= 2x-5;g(x)= x+5/2
C.f(x)= 2x+2;g(x)= 2x-2
D.f(x)= 3x-8;g(x)= 1/3x+8
my answer is D or B

2.) C
3.)A
f[g(x)] = (x-2)^2 + 1
= x^2 -4x +5

4.)correct

5.) B
Follow the same procedure you did for number 4



1. C is right

2. b^4 + 2b^2 - 24 = 0
b^4 + 2b^2 = 24
b^4 + 2b^2 + 1 = 24 + 1
(b^2 + 1)^2 = 25
b^2 + 1 = ± 5
b^2 = 4 or b^2 = -6
b= ±2 or b= ±i√6

3. I got A
f[g(x)]
= f(x-2)
= (x-2)^2 + 1
= x^2 - 4x + 4 + 1
= x^2 - 4x + 5

4. ok if you include brackets as in (x+7)/2

5 ok if you include brackets as in (x+5)/2 and (1/3)(x+8)

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra

    Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms. 2 – 11x^2 – 8x + 6x^2 A. –5x^2 – 8x + 2; quadratic trinomial B. –5x^2 – 8x; quadratic binomial C. –6x^2 – 8x

  2. american goverment check answers

    2. Which of the following statements support the idea that free speech is essential for democracy? Select all that apply. (2 points) Free speech can be limited in times of war. Free speech advances knowledge. Free speech

  3. algebra 2

    a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a.

  4. Math - Quadratic

    Rearrange this expression into quadratic form, ax2 bx c = 0 .2= ((x^2)/(55-x)) where a = 1, and identify the values of b and c.

  1. Algebra

    Write a quadratic function in standard form with Zeros 6 and -1

  2. Pre calc

    How do you write a quadratic equation in standard form for a given set of zeros?

  3. algebra

    Write an expression in simplest form that represents the perimeter of the polygon. the measure of the sides are 3x, x + 10, 2x + 2, and 5x. Would the simplified expression be 11x + 12?

  4. math

    Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve? A. One side of the

  1. Algebra 2 help plsss?

    what is a simpler form of the radical expression? 4sqrt1296 x^16 y^12 how can you write the expression with rationalized denominator? 3 sqrt 2 / 3 sqrt 4 what is the quotient (4-x)/(x^2 + 5x - 6) / (x^2 - 11x + 28)/(x^2 + 7x + 6)

  2. help riemann sums

    the expression 1/50 (1/50 +2/50+ 3/50+ .....50/50)is a Reimann sum approximation for (everything in the parantheses is square root except the 1/50 outside the paratheses) the answer has to me the integral form so from looking at

  3. math

    which form of a quadratic funtion is easiest to use to find the maximum or minimum value of the function? satandard form factored form vertex form any form ***********

  4. Algebra II

    Write a quadratic equation with -3/4 and 4 as its roots. Write the equation in form ax^2+bx+c=0, where a,b,and c are integers. (x-p)(x-q)=0 (x--3/4)(x-4)=0 (x+3/4)(x-4)=0 x^2-3x+3=0(answer)

You can view more similar questions or ask a new question.