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

The solution to expand (x-7)(x^2-x-3) is x^3-8x^2+4x+21

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

expand

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

x^{3} - 8 x^{2} + 4 x + 21

Solution steps

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

Distribute parentheses

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

Simplify

x x^{2} + x (- x) + x (- 3) - 7 x^{2} - 7 (- x) - 7 (- 3) : x^{3} - 8 x^{2} + 4 x + 21

= x^{3} - 8 x^{2} + 4 x + 21

72 x^{4} y^{2}

\frac{4 2}{3} 5

lo g_{0.04} (5)

- 2 \times \frac{2}{3}

(y + 3) (y - 2)

What is expand (x-7)(x^2-x-3) ?
The solution to expand (x-7)(x^2-x-3) is x^3-8x^2+4x+21