Champ12345
Champ12345 Champ12345
  • 08-10-2020
  • Mathematics
contestada

(2m-3)(2m-7) solve with identity

Respuesta :

sarahkuriala sarahkuriala
  • 08-10-2020

Answer:

4m^2 - 20m +21

Step-by-step explanation:

(2m-3)(2m-7)

identity >>>> (x+a)(x+b) = x^2 + ( a+b)x + ab

given x= 2m

a= -3

b= -7

(2m)^2 +(-3+ -7)2m+ (-3×-7)

4m^2 +(-6m -14m) + 21

4m^2 -20m +21

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