Factor (difference of squares) the binomial 25x^2-4 and find one of its factors
1 answer:
Step-by-step explanation:
Hey, there!
Here,
Given that:
we need to find factor,
As it is in a^2-b^2 form as per its factor (a+b) (a-b), keeping same formula here,
25x^2 means (5x)^2
and 4 means 2^2
Now, it would be,
Therefore, it's factor would be (5x+2)(5x-2).
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
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Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
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The conjugate of a+b is a-b.
These have a term for it because when you multiply them something special happens. The middle terms cancel so you only have to really multiply the first terms and the last terms.
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(a+b)(a-b)
I'm going to use foil:
First: a(a)=a^2
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Inner: b(a)=ab
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See -ab+ab canceled so all you had to do was the "first" and "last" of foil.
This would get rid of square roots if a and b had them because they are being squared.
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