Question

(x+7)²-77=x² with explanation

Answer 1

hello users.........

we have to solve the quadratic equation
(x+7)²-77=x²

solution:-
using formula :
(a+b)²= a² + b² + 2ab

here .
(x+7)²-77=
= x² +7² +14x -77
= x² +49 -77 +14x
= x² +14x-28 = x²
=> 14x-28 = 0
=> 14x=28
=> x= 2 answer

⭐✡ hope it helps ✡⭐