Question

show that x =-3 is a solution of (x)2 +6x+9=0

Answer 1

Put x=-3in the equation
(-3)^2+6(-3)+9
9-18+9
=0
Hence it is solution

Answer 2

$\bold{\text{SOLUTION : }}$

Given : x² + 6x + 9 = 0 , x = - 3 is a solution  

Equation is of the form p(x) = 0 , where  

p(x) =  x² + 6x + 9 ……………(1)

$\bold{\text{On putting x = - 3 in eq 1,}}$

p(- 3)  = (-3)² + 6(- 3) + 9

= 9 - 18 + 9

= + 9 - 9

= $<b>0</b>$

p(- 3) = 0

$\large{\text{Hence, x = - 3 is a solution of the given equation.}}$

HOPE THIS ANSWER WILL HELP YOU...