How do you factor #42x^2 + 5xy - 25y^2#?
You can use the quadratic formula or the cross-multiply rule (i think that's what it's called)
So your equation is
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To factor the expression 42x^2 + 5xy - 25y^2, you can use the method of factoring by grouping. First, find two numbers that multiply to give you 42 times -25, which is -105, and add up to 5. The numbers are 15 and -7. Then, rewrite the middle term using these numbers as coefficients: 5xy = 15xy - 7xy. Now, group the terms: (42x^2 + 15xy) - (7xy + 25y^2). Factor out the greatest common factor from each group: 3x(14x + 5y) - 5y(7x + 5y). Finally, factor out the common binomial factor: (3x - 5y)(14x + 5y).
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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