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Popular >

expand (k+2)^2

Solution

expand

(k + 2)^{2}

Solution

k^{2} + 4 k + 4

Solution steps

(k + 2)^{2}

Apply Perfect Square Formula:

(a + b)^{2} = a^{2} + 2 ab + b^{2}

(k + 2)^{2} = k^{2} + 2 k \cdot 2 + 2^{2}

= k^{2} + 2 k \cdot 2 + 2^{2}

Simplify

k^{2} + 2 k \cdot 2 + 2^{2} : k^{2} + 4 k + 4

= k^{2} + 4 k + 4

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Frequently Asked Questions (FAQ)

What is expand (k+2)^2 ?
The solution to expand (k+2)^2 is k^2+4k+4