What is 2(2+sqrt(15)) ?

The solution to 2(2+sqrt(15)) is 4+2sqrt(15)

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simplify 2(2+sqrt(15))

simplify

2 (2 + 15)

4 + 215

Decimal Notation

11.74596 \dots

Solution steps

2 (2 + 15)

Apply the distributive law:

a (b + c) = ab + a c

2 (2 + 15) = 2 \cdot 2 + 215

= 2 \cdot 2 + 215

Multiply the numbers:

2 \cdot 2 = 4

= 4 + 215

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