Chapter 8.2, Problem 67PE

For Exercises 67-68, find the constants $A$ and $B$ so that the two polynomials are equal. (Hint: Create a system of linear equations by equating the constant terms and by equating the coefficients on the $x$ terms and $x^2$ terms.)

$11x^2+26x-5=2A{x}^2+5Ax+3A+B{x}^2-2Bx-8B+2C{x}^2-7Cx-4C$