en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (3a-1)^2

Solution

expand

(3 a - 1)^{2}

Solution

9 a^{2} - 6 a + 1

Solution steps

(3 a - 1)^{2}

Apply Perfect Square Formula:

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

(3 a - 1)^{2} = (3 a)^{2} - 2 \cdot 3 a \cdot 1 + 1^{2}

= (3 a)^{2} - 2 \cdot 3 a \cdot 1 + 1^{2}

Simplify

(3 a)^{2} - 2 \cdot 3 a \cdot 1 + 1^{2} : 9 a^{2} - 6 a + 1

= 9 a^{2} - 6 a + 1

Popular Examples

expand (x^2-x+2)(12x^4+2x^2+3x)expand

(x^{2} - x + 2) (12 x^{4} + 2 x^{2} + 3 x)

simplify (-9+8i)+(8+9i)simplify

(- 9 + 8 i) + (8 + 9 i)

simplify (-4)+(-3)simplify

(- 4) + (- 3)

simplify sqrt(-2+3)simplify

- 2 + 3

simplify (-8x^2+9x)+(-6x^2+10x)simplify

(- 8 x^{2} + 9 x) + (- 6 x^{2} + 10 x)

Frequently Asked Questions (FAQ)

What is expand (3a-1)^2 ?
The solution to expand (3a-1)^2 is 9a^2-6a+1