# Math

posted by .

4x - 5 ≤ 2(x - 7)
x^3 - 5x^2 + 2x ≥ -8
2(x^3 - 2x^2 + 3) < x(x - 1)(x + 1)

• Math -

1.

4x - 5 ≤ 2x - 14
-x ≤ -9
x ≥ 9

2.

x^3 - 5x^2 + 2x + 8 ≥ 0
(x-4)(x-2)(x+1) ≥ 0
critical values are x = 4,2, and -1

the graph of f(x) = (x-4)(x-2)(x+1)
lies above the x-axis between -1 and 2, and values > 4
so -1 ≤ x ≤ 2 OR x ≥ 4

3.

2x^3 - 4x^2 + 6 < x^3 - x
x^3 - 4x^2 + x + 6 < 0
This expression also factors,
hint: (x+1) is a factor

I will let you finish it, let me know what you got

## Similar Questions

1. m – 7 < 6 (1 point) m < –1 m > 1 m < 13 m < –13 2. x + 4.5 ≥ 5.5 (1 point) x ≥ 10 x ≥ 1 x ≥ 0.1 x ≤ 1 3. p + 12 > 9 (1 point) p > 21 p > 3 p > –21 p > –3 4. Translate …
2. ### 7th grade math help Ms. Sue

3. Which of the following equations has an infinite number of solutions?
3. ### math (double checking)

I've posted this question before but I forgot to say that I was dealing with polynomial inequalities (not sure if that makes a difference) The question is: Solve the following polynomial inequalities. (9 marks) 4x - 5 ≤ 2(x - …
4. ### Algebra 2

Did I solve this quadratic inequality correctly?
5. ### Algebra 2

Can someone explain this inequality equation to me please?
6. ### Algebra 2

Jack is selling wristbands and headbands to earn money for camp. He earns \$2 for each wristband and \$3 for each headband. He wants to earn at least \$50. He needs to sell at least 5 wristbands. Which system of inequalities is shown …
7. ### Math

1. m – 7 < 6 A) m < –1 B) m > 1 C) m < 13 D) m < –13 <--------------------- 2. x + 4.5 ≥ 5.5 A) x ≥ 10 B) x ≥ 1 C) x ≥ 0.1 <------------------- D) x ≤ 1 3. p + 12 > 9 A) p …
8. ### Math

1. m – 7 < 6 A) m < –1 B) m > 1 C) m < 13 <---------------------- D) m < –13 2. x + 4.5 ≥ 5.5 A) x ≥ 10 B) x ≥ 1 <---------------------- C) x ≥ 0.1 D) x ≤ 1 3. p + 12 > 9 …
9. ### Math

1. 5h – 9 = –16 + 6h A) 4 B) –7 <------------------------- C) 7 D) 10 2. 4x + 4 = 9x – 36 A) -8 <----------------------- B) –7 C) 8 D) –3 3. Which of the following equations has an infinite number of solutions?
10. ### Math

1. 5h – 9 = –16 + 6h A) 4 B) –7 C) 7 <------------------------- D) 10 2. 4x + 4 = 9x – 36 A) -8 B) –7 C) 8 <------------------------- D) –3 3. Which of the following equations has an infinite number of solutions?

More Similar Questions