What is (x+2)^2+(x-2)^2 ?

The solution to (x+2)^2+(x-2)^2 is 2x^2+8

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (x+2)^2+(x-2)^2

simplify

(x + 2)^{2} + (x - 2)^{2}

2 x^{2} + 8

Solution steps

(x + 2)^{2} + (x - 2)^{2}

Expand

(x + 2)^{2} : x^{2} + 4 x + 4

= x^{2} + 4 x + 4 + (x - 2)^{2}

Expand

(x - 2)^{2} : x^{2} - 4 x + 4

= x^{2} + 4 x + 4 + x^{2} - 4 x + 4

Group like terms

= x^{2} + x^{2} + 4 x - 4 x + 4 + 4

Add similar elements:

x^{2} + x^{2} = 2 x^{2}

= 2 x^{2} + 4 x - 4 x + 4 + 4

Add similar elements:

4 x - 4 x = 0

= 2 x^{2} + 4 + 4

Add the numbers:

4 + 4 = 8

= 2 x^{2} + 8

\frac{sin ( x )}{sec ( x )}

lo g_{a} (\frac{a ^{3} + 2 a ^{2} + a}{( a + a ) ^{2}})

lo g_{10} (3) (9)

\frac{e ^{- 2} \cdot 2 ^{3}}{3 !}

12 - \frac{2}{5} 75