Math, asked by madhanmohan4274, 14 hours ago

(5x - 6y + 7z)^2 - (5x + 6y -7z)^2

Answers

Answered by suhail2070

Step-by-step explanation:

${(5x - 6y + 7z)}^{2} - {(5x + 6y - 7z)}^{2} = ((5x - 6y + 7z) - (5x + 6y - 7z))((5x - 6y + 7z) + (5x + 6y - 7z)) \\ \\ = (14z - 12y)(10x ) \\ \\ = 20x(7z - 6y).$

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