Find the values of the unknown constants A, B and C for the identity.
3x^2 - 5x +4 = A(x-2)^2 + B(x-2) + C
answer's 3, -7 and 6 for A, B and C respectively. but i got a 7 for B even after doing the question numerous times. please help me spot whether there's any mistakes.
thanks!