3 years ago

Factorise fully : 4(x - y)^2 - 9(x + y)^2

Mathematics

2 answers:

sergeinik [125]3 years ago

8 0

Answer:

- ( 5x + y ) ( x + 5y )

-5x^2 - 5y^2 - 26xy

Archy [21]3 years ago

4 0

Answer:

Step-by-step explanation:

4(x^2-2xy+y^2)-9(x^2+2xy+y^2)

4x^2-8xy+4y^2-9x^2-18xy-9y^2

-5x^2-26xy-5y^2

-5x^2-xy-25xy-5y^2

-x(5x+y)-5y(5x+y)

(-x-5y)(5x+y) or you can also remove the negative one to get

-(x+5y)(5x+y)

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Factorise fully : 4(x - y)^2 - 9(x + y)^2​

Factorise fully : 4(x - y)^2 - 9(x + y)^2