solution:-
Given Equation 7x=2x×x
⇒ 7x=2x2
⇒ 2x2-7x=0
this equation have a two degree so it is a Quadratic Equation
Quadratic Equation -
The form of Quadratic Equation is ax2+ bx + c =0
a , b and c are real number
(Real number- (-∞ to ∞ ) it's read minus infinity to infinity and its interval are available data only between minus infinity to infinity except at -∞,∞.)
in between (-∞ to ∞ ) is ........-5,-4,-3,-2,-1,√3,-√2, 0,√2,√3,1,2,3,4..........
