13 Answered Questions for the topic Cubic Equation

Cubic Equation Algebra

09/23/18

Find c+d if the roots of the cubic equation x^3-19(x^2)+cx+d=0 are three positive integers in a geometric sequence.
There is an equation x3 + 19x2 + cx + d = 0. There are three positive integer solutions to this equation, x1, x2, and x3. It is known that x1*r=x2 and x2*r=x3. You are asked to find the value of c+d.  more
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Cubic Equation Binomial Theorem

10/12/17

f(x) = ax^3 + (b - ad)x^2 + (c - bd)x - cd, where a = 26, b = -8, c = 21 and d = 8. What value of x satisfies the equation f(x) = 0?
I'm so bad at these topics ): I need help with this and some explanation, thanks! 
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Cubic Equation Multiple Choice

07/23/15

The equation x^3 + 5x^2 +1 = 7 models the volume of a shipping container where x is the width. Graph the equation to find the width of the box.
Please answer this question I have asked it 2 times before and no one answers. Choose one of these answers it is Multiple Choice   a. 1 ft. b. 2 ft. c. 4 ft. d. 7 ft.
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Cubic Equation Long Division

07/22/15

Divide using long division. (MC CHOOSE ONE ANSWER)
  a. 4x2-14x+44 b. 4x2-14x+44  R -130 c. 4x2+10x-40 d. 4x2+10x-40  R 134
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Cubic Equation

07/19/15

Which value is NOT a solution of x^3 + 64 = 0? (MULTIPLE CHOICE)
Which value is NOT a solution of x3 + 64 = 0?   a. 2+2i√3 b. 2-2i√3c. 4d. –4
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Cubic Equation

07/19/15

Solve the equation in the real number system: 2x^3+x^2-7x-6=0 (MULTIPLE CHOICE)
Solve the equation in the real number system: 2x3+x2-7x-6=0    a. x=-3/2, -1, 2 b. x=-1, 2 c. x=-2, -1, 2 d. -3, -1, 2
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Cubic Equation

07/18/15

Divide using long division. (-2x^3-4x^2-4x+2)/(x-4) (MULTIPLE CHOICE)
Divide using long division.  (-2x3-4x2-4x+2)/(x-4)    
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Cubic Equation

07/18/15

Determine if x + 3 is a factor of -3x^3+6x^2+6x+9. How do you know? (MULTIPLE CHOICE)
Determine if x + 3 is a factor of -3x3+6x2+6x+9. How do you know?   a. yes, because the remainder is 126b. no, because the remainder is –108c. yes, because the remainder is –108d. no, because the... more
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Cubic Equation

07/18/15

Graph the equation x^3 + 3x^2 = x^2 to find its solutions. (MULTIPLE CHOICE)
Graph the equation x3 + 3x2 = x2 to find its solutions.   a. 0 and –4b. 0 and –2c. –2 and –4d. –2 and–4   Choose one thanks
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Cubic Equation

07/18/15

Solve the equation in the real number system: 9x^3+9x^2-4x-4=0... (MULTIPLE CHOICE)
Solve the equation in the real number system: 9x3+9x2-4x-4=0   a. -3, -1, 3 b. -5, -1, 5 c. -1, -2/3, 2/3 d. -2/3, 2/3, 1   Choose one thanks
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Cubic Equation

07/16/15

The equation x^3 + 5x^2 +1 = 7 models the volume of a shipping container where x is the width. Graph the equation to find width of the box. (Multiple Choice)
The equation x^3 + 5x^2 +1 = 7 models the volume of a shipping container where x is the width. Graph the equation to find width of the box. (Multiple Choice)a. 1 ft.b. 2 ft.c. 4 ft.d. 7 ft.
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Cubic Equation

07/12/15

The equation x^3 + 5x^2 +1 = 7 models the volume of a shipping container where x is the width. Graph the equation to find width of the box. (Multiple Choice)
a. 1 ft. b. 2 ft. c. 4 ft. d. 7 ft.   Answer please choose one of the answers
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Cubic Equation

06/27/15

5x5+7x2+x solve it
1.5x5+7x2+x solve it
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