what is the method to factorise 16x4-y4
Answers
Answered by
34
Take the fourth root and you will get
2x-y.
This the simplified form of the given question.
Hope it helps.
2x-y.
This the simplified form of the given question.
Hope it helps.
Answered by
131
16x^4 - y^4
= (4x2)^2 - (y^2)^2
= (4x^2 +y^2)(4x^2 - y^2)
=(4x^2 + y^2)( (2x)^2 -y^2)
= (4x^2 + y^2)(2x + y)(2x - y).
= (4x2)^2 - (y^2)^2
= (4x^2 +y^2)(4x^2 - y^2)
=(4x^2 + y^2)( (2x)^2 -y^2)
= (4x^2 + y^2)(2x + y)(2x - y).
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