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What is 2x squared -8x - 42 over 6x squared divided by x2 - 9 over x2 - 3x?
Wiki User
∙ 11y ago
(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
Wiki User
∙ 11y ago
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3x(2x + 1)
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(x - 1)(3x + 5)
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(x - 2)(2x + 7)
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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)
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3x squared - x squared = 2x squared
what's -x(2x-3)?
2x squared - 3x
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x(3x - 2)
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What is 2x squared add 3x?
5
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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 x 3x squared?
2 squared X 3 squared = 5 squared
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2x+x is 3x
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)
