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OpenStudy (anonymous):
factorise 4x^2y^2 - 9z^2
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Directrix (directrix):
This is the difference of two squares pattern.
Directrix (directrix):
4x^2y^2 - 9z^2 = (2xy)² - (3z)² =
Directrix (directrix):
@Bherly Willing to give it a try?
OpenStudy (anonymous):
whats the answer?
Directrix (directrix):
The OpenStudy Code of Conduct prohibits me from giving the answer without some kind of instruction.
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Directrix (directrix):
Let me ask this: Will you factor a² - b² ? If you do that, I will show you have to use that result to factor the expression you posted. Okay?
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