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

The solution to expand (x+2)(5x^2-3x-2) is 5x^3+7x^2-8x-4

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

expand

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

5 x^{3} + 7 x^{2} - 8 x - 4

Solution steps

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

Distribute parentheses

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

Simplify

x \cdot 5 x^{2} + x (- 3 x) + x (- 2) + 2 \cdot 5 x^{2} + 2 (- 3 x) + 2 (- 2) : 5 x^{3} + 7 x^{2} - 8 x - 4

= 5 x^{3} + 7 x^{2} - 8 x - 4

\frac{1}{2} \div \frac{4}{5}

\frac{28}{16}

\frac{28}{63}

\frac{\frac{2 a + 2 b}{a ^{2} + ab}}{\frac{4}{a}}

5 \cdot 4 \cdot 3 \cdot 2

What is expand (x+2)(5x^2-3x-2) ?
The solution to expand (x+2)(5x^2-3x-2) is 5x^3+7x^2-8x-4