Question

the value of 5x²-3x+9 for x =-3 is

Answer 1

5x^2-3x+9


LHS=5×-3×-3-3×-3+9
= 5×9+9+9
=45+18
=63


RHS=5×-3×-3-3×-3+9
= 5×9+9+9
=45+18
=63


•°• LHS =RHS