# maths

Am I right?

1) 22x^2 + 16x + 64 < 0

For this problem I got: -32 > x < 24

* 35 minutes ago
* - 3 days left to answer.

1. 👍
2. 👎
3. 👁
1. You can rewrite your inequality as
11x^2 + 8x + 32 <0
The minimum of the term on the left occurs at x=-4/11, and it is positive there. Therefore it has no solutions

1. 👍
2. 👎

## Similar Questions

1. ### math

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

2. ### math

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

3. ### Algebra I

What is the sum or difference? 2x^4 - 8x^4 a. -6x^8 b. -6x^4 *** c. -16x^4 d. -16x^2

4. ### Algebra

There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20. what is the area of the part of the yard that is not covered by the circle? a. 4x(5) b. 8x^2(5-pi) c.

1. ### A/P Calculus

A Cyclist is riding on a path whose elevation is modeled by the function f(x) = 0.08(16x-x^2) where x and f(x) are measured in miles. Find the rate of change of elecation when x=4. Would this be 0.64? dx/dt would be 1.28 - 0.16x

2. ### Algebra 2

16x^2+16y^2-16x+24y-3=0 How do I solve this?

3. ### Math

Which of the following expressions is equivalent to (-2x^5 y^2)^4 A. -16x^20 y^8 B. -8x^10 y^8 C. -8x^9 y^6 D. 16x^9 y^6 E. 16x^20 y^8

4. ### algebra

Solve the system by addition or substitution. 16x-4y=20 y=4x-4 I ask for help with this and forgot to add the problem. can anyone help me understand how to do this? 16x-4y=20 -4x+y=-4 ___________ 16x-4y=20 (4)(-4x+y=-4)

1. ### Math

Which equation is true for all the ordered pairs in the table? X Y 0 0 1 4 2 16 3 36 A. Y=4x^2 B.Y=1/4x^2 C.Y=16x^2 D. 1/16x^2

2. ### Algebra 2

Standard form for both equation with steps 16x^2-96x+144+25y^2=400 16x^2+192x+576+25y^2=1600

3. ### Math - PreCalc (12th Grade)

Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y = -0.25tan t A) 25x^2 − 16y^2 = 1 B) 25x^2 + 16y^2 = 1 C) x^2 − 16y^2 = 25 D) 25y^2 − 16x^2 = 1 E) 4x^2 − 16x^2 = 1

4. ### math

Explain whether the points (−13, 4), (−7, 3), (−1, 2), (5,1), (11,0), (17,−1) represent the set of all the solutions for the equation y=−16x+116. Yes, because all the solutions of y=−16x+116 need to be integer values