firehunter0001 firehunter0001

23-07-2018
Mathematics

contestada

I need a little help :)

Simplify. √(9a^2) + √(49b) - a + √b

1) 2b + 8 √a
2) 2b - 8√b
3) 2b + 8√b

Respuesta :

GoddessofDork GoddessofDork

23-07-2018

So firstly, square root 9a^2 and 49: [tex] 3a+7\sqrt{b}-a+\sqrt{b} [/tex]

Next, combine like terms, and your answer will be [tex] 2a+8\sqrt{b} [/tex] , or the third option.

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