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Popular >

expand (u+7)^2

Solution

expand

(u + 7)^{2}

Solution

u^{2} + 14 u + 49

Solution steps

(u + 7)^{2}

Apply Perfect Square Formula:

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

(u + 7)^{2} = u^{2} + 2 u \cdot 7 + 7^{2}

= u^{2} + 2 u \cdot 7 + 7^{2}

Simplify

u^{2} + 2 u \cdot 7 + 7^{2} : u^{2} + 14 u + 49

= u^{2} + 14 u + 49

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Frequently Asked Questions (FAQ)

What is expand (u+7)^2 ?
The solution to expand (u+7)^2 is u^2+14u+49