jameeblanton11 jameeblanton11

29-03-2017
Mathematics

contestada

Find the product of (2x + 5y)^2
A. 4x^2+20xy+25y^
B. 4x^2-20xy+25y^2
C. 4x^2- 25y^2
D. 4x^2+ 25y^2

Respuesta :

morgaine816 morgaine816

29-03-2017

[tex](2x+5y)^{2} [/tex] is (2x+5y)(2x+5y) so now you use FOIL (First, Outer, Inner, Last) to distribute.

[tex] 4x^{2}[/tex]+10xy+10xy+[tex] 25y^{2} [/tex]
Now combine like terms
[tex]4 x^{2}+20xy+ 25y^{2} [/tex]

Hope that helps

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