Math, asked by drsubramanian2016, 7 months ago

(3х + 7)? — 84х = (3х – 7)?

Answers

Answered by satyam2510

1

Answer:

hope it is helpful

Step-by-step explanation:

1) ( 3х + 7 )^2 - ( 3х - 7 )^2 = ( 3х + 7 + 3х - 7 )( 3х + 7 - 3х + 7 ) = 6х•14 = 84х

2) 84х : Х = 84

Ответ 84

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