Question

If x= 1 , y = 2 is a solution of equation a²x +ay = 3 ,then find the value of a .

Answer 1

Given: x = 1, y = 2 is a solution of a²x + ay = 3

To find: a

Solution:

Put x = 1 and y =2 in the given equation

a²(1) + a(2) = 3

a² + 2a - 3 = 0

a² +3a - a -3 = 0

a(a+3) -1(a+3) = 0

a = 1 or a = -3

Answer 2

Answer:

1

Step-by-step explanation:

Given: x = 1, y = 2 is a solution of a²x + ay = 3

To find: a

Solution:

Put x = 1 and y =2 in the given equation

a²(1) + a(2) = 3

a² + 2a - 3 = 0

a² +3a - a -3 = 0

a(a+3) -1(a+3) = 0

a = 1 or a = -3, as DREAMYY said (sry If I misspelled ur username)

But if a = -3, then the equation will not b valid, so a = 1