What is (9x+8)^2-54x+48y

asked Nov 5, 2021 234k views

5 votes

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4 votes

Answer:

81x² + 90x + 48y + 64

Explanation:

(9x+8)² = (9x+8)(9x+8) = 9x*9x + 9x*8 + 8*9x + 8*8 = 81x² + 72x + 72x + 64

= 81x² + 144x + 64

then:

(9x+8)² -54x+48y = (81x² + 144x + 64) -54x + 48y = 81x² + 90x + 48y + 64

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