chloejubilee310 chloejubilee310
  • 23-10-2018
  • Mathematics
contestada

Find the product of (3x+7y)^2
A) 9x^2 - 42xy + 49y^2
B) 9x^2 - 49y^2
C) 9x^2 + 49y^2
D) 9x^2+42xy+49y^2

Respuesta :

trevordoyleione
trevordoyleione trevordoyleione
  • 24-10-2018

(3x+7y)²  the form is  ax² + 2ab + b² where a is 3x and B is 7y

so its

(3x)² + 1(3x)(7y) + (7y)²

9x² + 21xy + 49y²


Answer Link
JackieChan914 JackieChan914
  • 07-02-2019

Answer:

9x^2 − 42xy + 49y^2

Step-by-step explanation:


Answer Link

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