en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (2n-7)^2

Solution

expand

(2 n - 7)^{2}

Solution

4 n^{2} - 28 n + 49

Solution steps

(2 n - 7)^{2}

Apply Perfect Square Formula:

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

(2 n - 7)^{2} = (2 n)^{2} - 2 \cdot 2 n \cdot 7 + 7^{2}

= (2 n)^{2} - 2 \cdot 2 n \cdot 7 + 7^{2}

Simplify

(2 n)^{2} - 2 \cdot 2 n \cdot 7 + 7^{2} : 4 n^{2} - 28 n + 49

= 4 n^{2} - 28 n + 49

Popular Examples

simplify 3(ac)^3+3bc(ac)^2 simplify

3 (a c)^{3} + 3 b c (a c)^{2}

expand (-4x-3y^2)^2 expand

(- 4 x - 3 y^{2})^{2}

simplify (sqrt(200))/2 simplify

\frac{200}{2}

factor x^4y-x^5y^5 factor

x^{4} y - x^{5} y^{5}

simplify 7n+6-2n+3 simplify

7 n + 6 - 2 n + 3

Frequently Asked Questions (FAQ)

What is expand (2n-7)^2 ?
The solution to expand (2n-7)^2 is 4n^2-28n+49