Factor: 4x^2+4xy−288y^2

1 answer:

Sonja [21]3 years ago

7 0

$4x^2+4xy-288y^2=\\
4(x^2+xy-72y)=\\
4(x^2+9xy-8xy-72y)=\\
4(x(x+9y)-8y(x+9y))=\\
4(x-8y)(x+9y)$

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