expand (√5 + √2) square
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=>(√5 + √2)^2
=>Use identity (a + b )^2 = a^2 + b^2 + 2 ab
=>so,
=>a = √5 , b= √2
=>(√5)^2 + (√2)^2 + 2 (√5 x √2)
=>5 + 2 + 2 x √10
=>7 + 2√10
I hope it will help you ❤️❤️❤️
=>Use identity (a + b )^2 = a^2 + b^2 + 2 ab
=>so,
=>a = √5 , b= √2
=>(√5)^2 + (√2)^2 + 2 (√5 x √2)
=>5 + 2 + 2 x √10
=>7 + 2√10
I hope it will help you ❤️❤️❤️
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