What is expand (x+3)(3x^2-4x-5) ?

The solution to expand (x+3)(3x^2-4x-5) is 3x^3+5x^2-17x-15

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expand (x+3)(3x^2-4x-5)

expand

(x + 3) (3 x^{2} - 4 x - 5)

3 x^{3} + 5 x^{2} - 17 x - 15

Solution steps

(x + 3) (3 x^{2} - 4 x - 5)

Distribute parentheses

= x \cdot 3 x^{2} + x (- 4 x) + x (- 5) + 3 \cdot 3 x^{2} + 3 (- 4 x) + 3 (- 5)

Simplify

x \cdot 3 x^{2} + x (- 4 x) + x (- 5) + 3 \cdot 3 x^{2} + 3 (- 4 x) + 3 (- 5) : 3 x^{3} + 5 x^{2} - 17 x - 15

= 3 x^{3} + 5 x^{2} - 17 x - 15

80 r^{5} s

\frac{x - 2}{x ^{2} + 4 x - 12}

(4 x + 6) (4 x - 6)

(5 + 2 b) + (2 b + \frac{3}{2})

(a + b)^{3} + (a - b)^{3}

What is expand (x+3)(3x^2-4x-5) ?
The solution to expand (x+3)(3x^2-4x-5) is 3x^3+5x^2-17x-15