Question

Is x=-3 is solution of the equation.
2x - 7x+9 = 0

Answer 1

$\huge\sf \pink{Your \: Question}$

$Is \: x= \: -3 \: is \: solution \: of \: the \: equation?$

$\huge \sf \pink{Given}$

$2x - 7x+9 = 0$

$\huge \ \pink {Solution}$

$2( - 3) - 7( - 3) + 9 = 0 \\ - 6 + 21 + 9 = 0 \\ 30 - 6 = 0 \\ 24 = 0 \\ \\ rhs \: is \: not \: equal \: to \: lhs \\ therefore \\ - 3 \: is \: not \: the \: solution \: of \: p(x).$