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18-02-2019
Mathematics

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(2a+3b)^2 = 20 a.b=1 4a^2+9b^2=?

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2a3b2 20 ab1 4a29b2PLS FAST ANSWER class=

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18-02-2019

Answer:8

Step-by-step explan:

(a.b)^2 equals a^2 + 2ab + b^2

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