dsaaad363 dsaaad363

20-11-2021
Mathematics

contestada

if ab=12 and a^2+b^2=25 ,then what is (a+b)^2=

Respuesta :

hufederico984 hufederico984

20-11-2021

Answer:

I think it’s a^2+2ab+b^2

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rednaxela1818 rednaxela1818

20-11-2021

Answer:

49

Step-by-step explanation:

Multiply out (a+b)^2

(a+b)^2 = (a+b)(a+b) = a^2 + ab + ba + b^2 ; not ab = ba so,

= a^2 + 2ab + b^2 = a^2 + b^2 + 2ab ; now subtitue in given values

=25 + 2(12) = 25 + 24 = 49

So (a+b)^2 = 49

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