Question

Factorise 64x²+144xy+81y²

Answer 1

Answer:

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64x²+144xy+81y²

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64x²+144xy+81y²

=> (8x)²+2(8x)(9y)+(9y)²

using :-(a+b)²=a²+2ab+b²

=>(8x+9y)² answer

Answer 2

Step-by-step explanation:

64x²+144xy+81y²

(8x)²+2(8x)(9x)+81y².........(a+b)²=(a²+2ab+b²)

(8x+9y)²

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