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Popular >

expand (3+a)^2

Solution

expand

(3 + a)^{2}

Solution

9 + 6 a + a^{2}

Solution steps

(3 + a)^{2}

Apply Perfect Square Formula:

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

(3 + a)^{2} = 3^{2} + 2 \cdot 3 a + a^{2}

= 3^{2} + 2 \cdot 3 a + a^{2}

Simplify

3^{2} + 2 \cdot 3 a + a^{2} : 9 + 6 a + a^{2}

= 9 + 6 a + a^{2}

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Frequently Asked Questions (FAQ)

What is expand (3+a)^2 ?
The solution to expand (3+a)^2 is 9+6a+a^2