Which binomial is a difference of squares? answers in question
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OpenStudy (devonhoward15):
OpenStudy (devonhoward15):
@Samslays
OpenStudy (devonhoward15):
@Mehek14 @jigglypuff314 @Bobo-i-bo
OpenStudy (devonhoward15):
@rebeccaxhawaii
OpenStudy (bobo-i-bo):
Do you know what it means for a binomial to be the difference between two squares?
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OpenStudy (devonhoward15):
no :(
OpenStudy (bobo-i-bo):
It is the literally the difference of two square numbers. For example x^2-y^2 is the difference between two square numbers. 16-x^2 is the difference between two numbers (since 4^2=16). 36-4x^2 is the difference between two square numbers, because 6^2=36 and (2x)^2=4x^2
OpenStudy (bobo-i-bo):
Do you understand now? :)
OpenStudy (devonhoward15):
yeah
OpenStudy (devonhoward15):
i think its 36x^2+81
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OpenStudy (devonhoward15):
@Bobo-i-bo
OpenStudy (devonhoward15):
am i right?
OpenStudy (bobo-i-bo):
DIFFERENCE. not sum :P
OpenStudy (devonhoward15):
ohh ok
OpenStudy (bobo-i-bo):
It is DIFFERENCE of two squares afterall ;P
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OpenStudy (devonhoward15):
so i am right?
OpenStudy (bobo-i-bo):
is your answer the difference between two square numbers?
OpenStudy (devonhoward15):
i think so... but not sure
OpenStudy (bobo-i-bo):
Difference means minus. For example, what is the difference between 5 and 2? Well the difference is 5-2=3! What is the difference between A lots of apples and B lots of apples? Well the difference is A-B! Understand better? :)
OpenStudy (devonhoward15):
ohh so its gonna be a minus not plus
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OpenStudy (bobo-i-bo):
^_^
OpenStudy (devonhoward15):
in that case its A
OpenStudy (devonhoward15):
@Bobo-i-bo
OpenStudy (devonhoward15):
sorry to keep bugging you
OpenStudy (bobo-i-bo):
No, dw! I'm on here to help people afterall ^_^
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OpenStudy (devonhoward15):
ok... so i think A
OpenStudy (bobo-i-bo):
Is 14x^2 a square number?
OpenStudy (devonhoward15):
yes
OpenStudy (bobo-i-bo):
What is it the square of?
OpenStudy (devonhoward15):
196
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OpenStudy (bobo-i-bo):
nope, the square of 14 is 196
OpenStudy (bobo-i-bo):
we are trying to find whether 14 itself is a square number
OpenStudy (bobo-i-bo):
(and it's not)
OpenStudy (devonhoward15):
ohh no
OpenStudy (devonhoward15):
but 25 is!!! and its got a minus
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OpenStudy (devonhoward15):
so C
OpenStudy (bobo-i-bo):
Yup! :D
OpenStudy (devonhoward15):
finally... just to make sure it is c right?
OpenStudy (bobo-i-bo):
yup ^_^
OpenStudy (devonhoward15):
can you help me with 1 more question and than i think im done
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