Study guides

☆☆

Q: What is the factorization to 7x squared plus 14x minus 21?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

49

-12

[9x-5x+1] + [16x-2x-9] [4x+1] + [14x-9] [18x2+8]

x + (3x - 2) = 14x + 3x - 2 = 144x - 2 = 144x = 16x = 4

To solve this you must first factor the denominator into (2x+1)(2x-1) and see then that there are two variable A, and B that you need to solve for when making the partials. From this you get the equation: (4x2 - 14x + 2)/(4x2 - 1) = A/(2x+1) + B/(2x-1) Let's get rid of the denominator on the right: 4x2 - 14x + 2 = A(2x-1) + B(2x+1) now we need to plug in values for x such that either A or B is canceled out. Obviously, A is canceled out at x=1/2 and B is canceled out at x=-1/2 Solving the equations when plugging in x we get: A=-5 and B = 2, so your final answer is: (4x2 - 14x + 2)/(4x2 - 1) = -5/(2x+1) + 2/(2x-1)

Related questions

7x2 - 14x = 7x(x - 2)

3x2 -14x -24 can be factored as (3x + 4)(x - 6).

(x - 4)(3x - 2)

3x^2 -14x +15 = (3x-5)(x-3)

14x squared minus 7x to the 3rd power can be factored to 7x2(2-x).

16x

14x(x + 2)

Yes because if x2-14x+49 then it is (x-7)(x-7) when factored

x=7

(3x + 1)(x - 5)

14x2-7x2-16 7x2-16 (this can't be simplified any more)

if its x(squared) its 7x(cubed) if its 2xX its 14x(squared)

People also asked