hannahashtonn
hannahashtonn hannahashtonn
  • 14-07-2020
  • Mathematics
contestada

GIVING BRANLIEST TO FIRST CORRECT ANSWER

GIVING BRANLIEST TO FIRST CORRECT ANSWER class=

Respuesta :

bekkarmahdi702
bekkarmahdi702 bekkarmahdi702
  • 14-07-2020

Answer:

Step-by-step explanation:

  • y²+2by+b²-a²-6ad-9d²
  • (y+b)²-(a²+2*3d*a+(3d)²)
  • (y+b)²-(a+3d)²
  • (y+b+a+3d)*(y+b-a-3d)

Answer Link
PollyP52 PollyP52
  • 14-07-2020

Answer:

( y + b - a - 3d)(y + b + a + 3d).

Step-by-step explanation:

y^2 + 2by + b^2 - a^2 - 6ad - 9d^2

= y^2 + 2by + b^2 - (a^2 + 6ad + 9d^2)

= (y + b)^2 - (a + 3d)^2

This is the difference of 2 squares so we have

(y + b - (a + 3d))(y + b + (a + 3d))

= ( y + b - a - 3d)(y + b + a + 3d)

Answer Link

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