Question

How do you Simplify √5 + √80

Answer 1

Step-by-step explanation:

$\sqrt{5} + \sqrt{80 } \\ \sqrt{5} + \sqrt{5} \times \sqrt{16} \\ \sqrt{5} (1 + \sqrt{16} ) \\ \sqrt{5} (1 + 4) \\ \sqrt{5} \times 5 \\ 5 \sqrt{5}$

$\sqrt{5} (1 + 4) \\ \sqrt{5} \times 5 \\ 5 \sqrt{5}$

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Answer 2

sqroot80= sqrt(2×2×2×2×5)= 4×sqrt5

Therefore sqrt 5 + 4sqrt5= 5sqrt5

[sqrt means square root of]

sqrt 5 is approximately equal to 2.236