reyna53 reyna53
  • 24-10-2019
  • Mathematics
contestada

15x2 + 22x + 8 =
Factor by grouping

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 25-10-2019

Answer:

(5x + 4)(3x+2)

Step-by-step explanation:

15x² + 22x + 8

First, you find two, when added equals 22 and when multiplied together equals 15*8

You then replace 22x with the two numbers

15x² + 10x + 12x + 8

You then group the above expression in 2s

(15x²+10x) + (12x + 8)

Find common factors in each group

5x(3x + 2) + 4(3x + 2)

(5x + 4)(3x+2)

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