Question

9(x-2y)^2+36 (x-2y)(x+y)+36(x+y)^2​
please give fast answer

Answer 1

nor इ कैन आंसर फास्ट neither u कैन असक



babe

Answer 2

Solution:

9(x-2y)²+36(x-2y)(x+y)+36(x+y)²

= [3(x-2y)]²+2*3(x-2y)*6(x+y)+

[6(x+y)]²

= [3(x-2y)+6(x+y)]²

/* a²+2ab+b² = (a+b)² */

= (3x-6y+6x+6y)²

= (9x)²

= 81x²

Therefore,

9(x-2y)²+36 (x-2y)(x+y)+36(x+y)² = 81x²

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