Question

how to solve 8x -9y the whole square

Answer 1

Answer:

64x²-144xy+81y²

Step-by-step explanation:

(8x-9y)²

(a-b)²=a²-2ab+b²

(8x)²-2(8x)(9y)+(9y)²

64x²-144xy+81y²

Answer 2

Answer:

$(8x - 9y) {}^{2} = 64x {}^{2} + 81y {}^{2} - 2(8x)(9y)$

$64x {}^{2} + 81y {}^{2} - 144xy$

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