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adelina 88 [10]
3 years ago
14

Help please!! will give brainiest :))

Mathematics
2 answers:
jeyben [28]3 years ago
7 0

Answer:

81(x + 2y)(x - 2y)

Step-by-step explanation:

81 {x}^{2}  - 324 {y}^{2}  \\  \\  =  {(9x)}^{2}  -  {(18y)}^{2}  \\  \\  = (9x + 18y)(9x - 18y) \\  \\  = 9(x + 2y) \times 9(x - 2y) \\  \\  = 81(x + 2y)(x - 2y)

Kitty [74]3 years ago
3 0
<h2><u><em /></u></h2><h2><u><em> -98415 is the answer because im smart</em></u></h2>
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