Factor and reduce to simplest form.6x2 + 11xy − 10y23x2 + 10xy − 8y2
Question
Factor and reduce to simplest form.6x2 + 11xy − 10y23x2 + 10xy − 8y2
Solution
First, let's factor each of the two expressions separately.
For the first expression, 6x^2 + 11xy - 10y^2, we are looking for two numbers that multiply to (6*-10)=-60 and add to 11. Those numbers are 15 and -4. So we can rewrite the expression as:
6x^2 + 15xy - 4xy - 10y^2
Now, we can factor by grouping:
3x(2x + 5y) - 2y(2x + 5y)
So the factored form of the first expression is (3x - 2y)(2x + 5y).
For the second expression, 3x^2 + 10xy - 8y^2, we are looking for two numbers that multiply to (3*-8)=-24 and add to 10. Those numbers are 12 and -2. So we can rewrite the expression as:
3x^2 + 12xy - 2xy - 8y^2
Now, we can factor by grouping:
x(3x + 4y) - 2y(3x + 4y)
So the factored form of the second expression is (x - 2y)(3x + 4y).
Therefore, the factored form of the entire expression is:
(3x - 2y)(2x + 5y) / (x - 2y)(3x + 4y)
We can see that (3x - 2y) is a common factor in the numerator and the denominator, so we can cancel it out to reduce the expression to simplest form:
(2x + 5y) / (3x + 4y)
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