Question

factorise 1 - 25 (2 x minus 3 Y) raise to the power 2​

Answer 1

Answer:

1-25(2X-3Y)^2

Let 5(2X-3Y) be z

therefore,the given expression is

1^2-z^2

=(1+z)(1-z)

=(10X-15Y+1)(1-10X+15Y)

Answer 2

Answer:

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