0
(2x^2-8x-42)/[(x^2-9)/(x^2-3x)]
=2(x^2-4x-21)/[(x+3)(x-3)/(x(x-3))]
=2(x-7)(x+3)/[(x+3)/x]
When we canceled out "(x-3)," it set up a domain restriction: x≠3. This is correct because we are not allowed to divide by 0 at any point, ever! Moving on...
=2(x-7)(x+3)(x)/(x+3)
=2(x-7)(x)
Now, x≠-3 for the same reason stated above. Moving on...
=2x(x-7)
=2x^2-14x
What else can I help you with?
What is the solution to 3x squared -2x-8?
3x2-2x-8 = (3x+4)(x-2) when factored
How do you factor 6x squared plus 3x equals 0?
3x(2x + 1)
How do you factor the binomial 3x squared plus 2x-5?
(x - 1)(3x + 5)
How do you factor 2x squared plus 3x minus 14?
(x - 2)(2x + 7)
How do you factoring by grouping in 6x cubed plus 9 x squared minus 2x squared minus 3x?
6x3 + 9x2 - 2x2 - 3x Before any grouping, take out the common factor, x, to give x*(6x2 + 9x - 2x - 3) = x*[3x*(2x + 3) - 1*(2x + 3)] = x*(2x + 3)*(3x - 1)
what's -x(2x-3)?
2x squared - 3x
Who can factor 3x squared minus 2x?
x(3x - 2)
What is 2x squared add 3x?
5
How do you factor 6x squared plus 10x?
6x2 + 10x = 2x*(3x + 5)
What is the solution to 3x squared -2x-8?
3x2-2x-8 = (3x+4)(x-2) when factored
What is 2x squared plus x squared?
Oh, dude, that's like basic math, right? So, 2x squared plus x squared is just 3x squared. It's like adding apples to apples, but with math. Easy peasy lemon squeezy!
What is 2x squared x 3x squared?
2 squared X 3 squared = 5 squared
How can you factor to simplify 6x to the third -9x squared over 2x-3?
(6x^3-9x^2) / (2x-3) = 3x^2((2x-3) / (2x-3) = 3 x ^2 (3 x squared)
How do you factor 6x squared plus 3x equals 0?
3x(2x + 1)
What is a factor of the polynomial 2x squared - 3x - 5?
(x + 1)(2x - 5)
3x squared - x squared?
3x squared - x squared = 2x squared
How do you factor the binomial 3x squared plus 2x-5?
(x - 1)(3x + 5)
