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Simplify:
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\[\frac{ x ^{2}-3x-18 }{ x ^{2}-36 }\]
Any ideas?
x-6/x-3
x+6/x-6
x-3/x+3
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x+3/x+6
Do you recognise a difference of two squares in the denominator?
36 divided be 18 is 2
by
$$\huge x^2-36=x^2-6^2$$
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ok
Recall $$\huge a^2-b^2=?$$
no
$$\huge a^2-b^2=(a+b)(a-b)$$
@AkashdeepDeb
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ok so??
skullpatrol will help you.
Please apply this formula to the denominator of your question.
I can help you learn, but I can't learn for you :-)
k but it makes no sense
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What makes no sense?
Apply this formula: $$a^2-b^2=(a+b)(a-b)$$ to $$x^2-6^2$$
Please try to learn...
In 2 minutes I'm gone.
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