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Popular >

expand (r+1)^2

Solution

expand

(r + 1)^{2}

Solution

r^{2} + 2 r + 1

Solution steps

(r + 1)^{2}

Apply Perfect Square Formula:

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

(r + 1)^{2} = r^{2} + 2 r \cdot 1 + 1^{2}

= r^{2} + 2 r \cdot 1 + 1^{2}

Simplify

r^{2} + 2 r \cdot 1 + 1^{2} : r^{2} + 2 r + 1

= r^{2} + 2 r + 1

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Frequently Asked Questions (FAQ)

What is expand (r+1)^2 ?
The solution to expand (r+1)^2 is r^2+2r+1