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Popular >

expand (3-u)^2

Solution

expand

(3 - u)^{2}

Solution

9 - 6 u + u^{2}

Solution steps

(3 - u)^{2}

Apply Perfect Square Formula:

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

(3 - u)^{2} = 3^{2} - 2 \cdot 3 u + u^{2}

= 3^{2} - 2 \cdot 3 u + u^{2}

Simplify

3^{2} - 2 \cdot 3 u + u^{2} : 9 - 6 u + u^{2}

= 9 - 6 u + u^{2}

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Frequently Asked Questions (FAQ)

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