Question

no me sale este ejercicio me ayudan (4m-5) (6m+3) - (12m al cuadrado -5m+6) = (3m - 2) (4m+3) -1     porfa necesito su ayuda

Answer 1

(4m-5)(6m+3)-(12m²-5m+6)=(3m-2)(4m+3)-1
(24m²-18m-15)-(12m²-5m+6)=12m²+m-6-1
12m²-13m-21=12m²+m-7
-21+7=m+13m
    -14=14m
     -1 = m             
Respuesta: -1                                                

Answer 2

(4m-5)(6m+3)-(12m²-5m+6)=(3m-2)(4m+3)-1

(4m-5)(6m+3)-12m²+5m-6=(3m.4m+3m.3-2.4m-2.3)-1
(4m.6m+4m.3-5.6m-5.3)-12m² +5m-6=(3.4m m+3.3m-8m-6)-1
(24m²-18m-15)-12m²+5m-6=(12m²+m-6)-1
24m²-18m-15-12m²+5m-6=12m²+m-6-1
12m²-13m-21=12m²+m-7
-14m=14
    14m/14= -14/14
    m=  -1