What is the factored form of the expression?
4x2 – 81y2
A. (2x + 9)(2x – 9)
B. (2x + 9y)(2x – 9y)
C. (2x + 9y)2
D. (2x – 9y)2
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OpenStudy (anonymous):
is it for a test or a quiz
OpenStudy (anonymous):
Exam
OpenStudy (anonymous):
@bmo1245
OpenStudy (anonymous):
ill try to help
OpenStudy (anonymous):
Nooo kami the whole point is to show him how to work it out!
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OpenStudy (anonymous):
B
OpenStudy (anonymous):
@Jhonnychewy B
OpenStudy (anonymous):
Thank you all! =)
OpenStudy (anonymous):
can you help me with this solve –8x > –64 (1 point) plz
OpenStudy (anonymous):
4x^22 – 81y^22
lets start by factoring 4x^22. We are trying to find what multiplies together to get 4x^2
we know 2 x 2 = 4 so there we go and that x multiplied by x is x^2
so that factor would 2x
so far we have (2x + ) (2x - )
to factor 81y^2 its the same deal 9 x 9 = 81 and y multiplied by y is y^2
the final answer would be (2x + 9y)(2x - 9y)
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OpenStudy (anonymous):
Make sure to close the question and award medals. I hope this helped and have a nice day!