en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (x+3)(x-3)+sqrt(81)

Solution

simplify

(x + 3) (x - 3) + 81

Solution

x^{2}

Solution steps

(x + 3) (x - 3) + 81

81 = 9

= (x + 3) (x - 3) + 9

Expand

(x + 3) (x - 3) : x^{2} - 9

= x^{2} - 9 + 9

Add the numbers:

- 9 + 9 = 0

= x^{2}

Popular Examples

simplify 30(x^3)-31(x^2)+10x-1 simplify

30 (x^{3}) - 31 (x^{2}) + 10 x - 1

simplify (-6m^{-1}*n^0)^{-2}simplify

(- 6 m^{- 1} \cdot n^{0})^{- 2}

simplify 3n-n simplify

3 n - n

expand (2x+3y-52)^2 expand

(2 x + 3 y - 52)^{2}

sqrt(((x+4))/((-2x+12)))

\frac{( x + 4 )}{( - 2 x + 12 )}

Frequently Asked Questions (FAQ)

What is (x+3)(x-3)+sqrt(81) ?
The solution to (x+3)(x-3)+sqrt(81) is x^2