What is expand (x^2+3x-1)(x^2-3x-7) ?

The solution to expand (x^2+3x-1)(x^2-3x-7) is x^4-17x^2-18x+7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (x^2+3x-1)(x^2-3x-7)

expand

(x^{2} + 3 x - 1) (x^{2} - 3 x - 7)

x^{4} - 17 x^{2} - 18 x + 7

Solution steps

(x^{2} + 3 x - 1) (x^{2} - 3 x - 7)

Distribute parentheses

= x^{2} x^{2} + x^{2} (- 3 x) + x^{2} (- 7) + 3 x x^{2} + 3 x (- 3 x) + 3 x (- 7) - 1 \cdot x^{2} - 1 \cdot (- 3 x) - 1 \cdot (- 7)

Simplify

x^{2} x^{2} + x^{2} (- 3 x) + x^{2} (- 7) + 3 x x^{2} + 3 x (- 3 x) + 3 x (- 7) - 1 \cdot x^{2} - 1 \cdot (- 3 x) - 1 \cdot (- 7) : x^{4} - 17 x^{2} - 18 x + 7

= x^{4} - 17 x^{2} - 18 x + 7

x^{6} - 6 x^{5} + 24 x^{3} - x^{2} + 30 x

x^{5} y + x^{3} y^{4}

\frac{7}{- 49}

- \frac{8}{3}

- 8 \div 8

What is expand (x^2+3x-1)(x^2-3x-7) ?
The solution to expand (x^2+3x-1)(x^2-3x-7) is x^4-17x^2-18x+7