If x 2 + x x + 1 x - 2 2 x 2 + 3 x - 1 3 x 3 x - 3 x 2 + 2 x + 3 2 x - 1 2 x - 1 = a x - 12 , then a is equal to:

Question

Aicharya · Accepted Answer

Put x = 1 on both the sides 2 2 - 1 4 3 0 6 1 1 = a - 12 &#8658; 2 3 - 0 - 2 4 - 0 - 1 4 - 18 = a - 12 &#8658; 6 - 8 + 14 = a - 12 &#8658; 12 = a - 12 &#8658; 24 = a .

If x 2 + x x + 1 x - 2 2 x 2 + 3 x - 1 3 x 3 x - 3 x 2 + 2 x + 3 2 x - 1 2 x - 1 = a x - 12 , then a is…

Solution