Question

Find the value of ‘a’ if x=1 and y=2 is a solution of equation a^2x+ay =3​

Answer 1

• x = 1 , y = 2

• a²x + ay = 3

• $\implies a² + 2a = 3$

• $\implies a² + 2a - 3 = 0$

• $\implies a² + 2a - 3 = (a + 3 )×(a - 1 )$

$\rule{10cm}{0.05cm}$

solutions = -3 , 1