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Show that. (3x + 7)^2 – 84x = (3x – 7)^2 Show that. (3x + 7)^2 – 84x = (3x – 7)^2

Show that. 
(3x + 7)^2 – 84x = (3x – 7)^2
Show that.  
(3x + 7)^2 – 84x = (3x – 7)^2

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5964 Points
8 months ago
Dear Student

LHS = (3x + 7)^2–84x
= 9x^2+ 42x + 49 - 84x
= 9x^2- 42x + 49
= RHS
LHS = RHS

Thanks

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