0
First, it is important to regroup, so I am going to rearrange this equation:
(x4 - 7x2 - 18 - 3x3 + 27x
I can now factor the first three terms and the last two terms:
(x4 - 7x2 - 18) becomes (x2 - 9)(x2 + 2)
-3x3 + 27x becomes -3x(x2 - 9); so the new equation looks like:
(x2 - 9)(x2 + 2) - 3x(x2 - 9)
From here, factor out what is common, in this case- x2- 9. Therefore, you will have
(x2 - 9)(x2 + 2 - 3x), which can be rearranged to (x2 -9)(x2 - 3x + 2).
Further factoring reveals
(x + 3)(x - 3)(x - 1)(x - 2) as the final answer.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
The LCM using prime factorization of 42 and 126.?
42 126 ^ ^ 7x6 14x9 ^ 3x2 ^ ^ 7x2 3x3 7x3x2=LCM is 42
What is 7x2-56x plus 112 equals 0?
7X^2 -56X + 112 = 0 divide through by 7 X^2 - 8X + 16 = 0 factor (X-4)(X-4) X = 4
What is 7x to the second power plus -10x plus 3 equals 0 factored?
7x2-10x+3=0 (7x-3)(x-1)=0
What is 7x squared minus 4x minus 5x squared plus 2x?
7x2 -4x -5x2 +2x = 2x2 -2x
What is the solution set for this quadratic equation 7x2 plus x equals 6?
The solution: x = 6/7 and x = -1
How do you factor 21x2 plus 27x-30?
21x2 + 27x - 30 = 3*(7x2 + 9x - 10) = 3*(7x2 - 5x + 14x - 10) =3*[x*(7x - 5) + 2*(7x - 5)] = 3*(7x - 5)*(x + 2)
Factor the polynomial 7x2 plus 68xy - 20y2?
7x2 + 68xy - 20y2
How do you factor 28x3-7x2 plus 36x-9?
(7x2 + 9)(4x - 1)
What is the greatest common factor of 7x2 plus 49x5-37x2z?
The GCF is x2
How do you factor 7x2 - 70x plus 175?
7(x-5)^2
What is the factor of x3 plus 7x2 plus 12x plus 10?
(x + 5)(x^2 + 2x + 2)
What are the zeros or x-interecepts or soultions or roots of the quadratic equation -7x2 - 27x plus 28 equals 0?
Using the quadratic equation formula:- x = -4.706950048 and x = 0.849071913
How do you factor 7x2 plus 7x - 14?
7x2 + 7x - 14 = 7(x2 + x - 2) = 7(x + 2)(x - 1)
What is the greatest common factor for 35x6 and 7x2?
7x2
7x2 plus 7x what is 49?
7x2 plus 7x5 = 49
How do you factor 7x2-3x plus 4?
It can't be factored because its discriminant is less than zero
Factor the polynomial x2 plus 5x - 24 Write each factor as a polynomial in descending order?
2x+5x-24 7x2-24
