Question

Dada la igualdad: 5x-11/ 2x x-6 = A/ x 2 B/ 2x-3Halle A B✔Claves:A.2 B. 3 C. 0 D. 1

Answer 1

Respuesta:

2

Explicación:

5x - 11 = 2Ax - 3A + Bx + 2B

5x - 11 = x(2A + B) - 3A + 2B

2A + B = 5  

B = 5 - 2A

-3A + 2B = -11

-3A + 2(5 - 2A) = -11

-3A + 10 - 4A = -11

-7A = -11 - 10  

-7A = -21

A = -21/-7

A = 3

B = 5 - 2A

B = 5 - 2(3)

B = 5 - 6

B = -1

A + B

3 + (-1)

3 - 1

2