What is expand (x-3)(3x^2+5x-7) ?

The solution to expand (x-3)(3x^2+5x-7) is 3x^3-4x^2-22x+21

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expand (x-3)(3x^2+5x-7)

expand

(x - 3) (3 x^{2} + 5 x - 7)

3 x^{3} - 4 x^{2} - 22 x + 21

Solution steps

(x - 3) (3 x^{2} + 5 x - 7)

Distribute parentheses

= x \cdot 3 x^{2} + x \cdot 5 x + x (- 7) - 3 \cdot 3 x^{2} - 3 \cdot 5 x - 3 (- 7)

Simplify

x \cdot 3 x^{2} + x \cdot 5 x + x (- 7) - 3 \cdot 3 x^{2} - 3 \cdot 5 x - 3 (- 7) : 3 x^{3} - 4 x^{2} - 22 x + 21

= 3 x^{3} - 4 x^{2} - 22 x + 21

(x - 4 - i) (x - 4 + i)

(x^{2} - 8) + (3 x - 12)

1 + 4 (6 p - 9)

\frac{1}{sec ( x ) - 1} - \frac{1}{sec ( x ) + 1}

\frac{- 3}{9}

What is expand (x-3)(3x^2+5x-7) ?
The solution to expand (x-3)(3x^2+5x-7) is 3x^3-4x^2-22x+21