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Just like there is a formula for solving quadratic equations, there is one for solving cubics, but it is much larger. Cubics three roots (or zeroes, or solutions). The formula is too large to be read comfortably here, so I've included a link to the relevant Wikipedia page where you can see the full formula; check under "related links".
First set the function equal to zero. x^3 - 4*x^2 - 9*x + 36 = 0 Then factorise the left hand side. x^2*(x-4) - 9*(x-4) = 0 (x-4)*(x^2-9) = 0 or (x-4)*(x-3)*(x+3) = 0 For the product [multiple] of these three factors to be zero, one of them must be zero. So, x-4 = 0 or x-3 = 0 or x+3 =o ie x = 4 or x = 3 or x = -3
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What is the answer to 6x plus 47 equals 9x plus 11?
6x + 47 = 9x + 11 6x + 36 = 9x 36 = 3x 12 = x
How do you solve 44 equals 9x plus 8?
44 = 9x +8 36=9x 4=x
What is the slope of 9x plus 18y equals 36?
9x+18y = 36 18y = -9x+36 y = -1/2x+2 which is now in slope intercept form the slope being -1/2
What is the trinomial for 5x plus 4 9x plus 9?
(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)
Simplify this polyinomal10x plus 8x-6x3 plus 4x2 plus 12x3-x plus 20?
10x + 8x - 6x3 + 4x2 + 12x3 - x add the like terms. all the x's are like terms. al the x squared are like terms. all the x cubed are liked terms. 6x3 + 12x2 + 9x
What is the answer to x cubed plus 4x squared minus 9x minus 36 divided by x plus 3?
Dividend: x3+4x2-9x-36 Divisor: x+3 Quotient: x2+x-12
What are the real zeros of x3 4x2-9x-36?
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What is the discriminant of the equation 4x2 plus 1 equals 9x-2?
The discriminant is 33.
What is the answer to 6x plus 47 equals 9x plus 11?
6x + 47 = 9x + 11 6x + 36 = 9x 36 = 3x 12 = x
4x2-9x plus 1 equals 0?
sure it does... that would be true
How do you solve 44 equals 9x plus 8?
44 = 9x +8 36=9x 4=x
What is the slope of 9x plus 18y equals 36?
9x+18y = 36 18y = -9x+36 y = -1/2x+2 which is now in slope intercept form the slope being -1/2
What is the trinomial for 5x plus 4 9x plus 9?
(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)
Simplify this polyinomal10x plus 8x-6x3 plus 4x2 plus 12x3-x plus 20?
10x + 8x - 6x3 + 4x2 + 12x3 - x add the like terms. all the x's are like terms. al the x squared are like terms. all the x cubed are liked terms. 6x3 + 12x2 + 9x
How do you factor x squared plus 9x minus 36?
(x + 12)(x - 3)
What binomial is a factor of both x2 plus 5x-36 and x2-9x plus 20?
x - 4. x^2 + 5x - 36 = (x - 4) (x + 9) x^2 - 9x + 20 = (x - 4) (x - 5)
What is 4 plus 7 plus 9X?
11 + 9X
