What is expand (k+sqrt(1))(k^2+k+sqrt(1)) ?

The solution to expand (k+sqrt(1))(k^2+k+sqrt(1)) is k^3+2k^2+2k+1

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expand (k+sqrt(1))(k^2+k+sqrt(1))

expand

(k + 1) (k^{2} + k + 1)

k^{3} + 2 k^{2} + 2 k + 1

Solution steps

(k + 1) (k^{2} + k + 1)

Distribute parentheses

= k k^{2} + kk + k 1 + 1 k^{2} + 1 k + 11

Simplify

k k^{2} + kk + k 1 + 1 k^{2} + 1 k + 11 : k^{3} + 2 k^{2} + 2 k + 1

= k^{3} + 2 k^{2} + 2 k + 1

\frac{- 2 x ^{2} - 2 x + 2}{( x ^{2} + 1 ) ^{2}}

3 (5 - 11)

(e^{x} sin (2 x) + 2 e^{x} cos (2 x))^{2}

162 (3 π - 4)

(x - \frac{1}{2}) (x + 4)

What is expand (k+sqrt(1))(k^2+k+sqrt(1)) ?
The solution to expand (k+sqrt(1))(k^2+k+sqrt(1)) is k^3+2k^2+2k+1