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

The solution to expand (x+1)(2x^2-x-7) is 2x^3+x^2-8x-7

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

expand

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

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

Solution steps

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

Distribute parentheses

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

Simplify

x \cdot 2 x^{2} + x (- x) + x (- 7) + 1 \cdot 2 x^{2} + 1 \cdot (- x) + 1 \cdot (- 7) : 2 x^{3} + x^{2} - 8 x - 7

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

- 2 \times 9

i^{109}

15 x + 12

lo g_{33} (27)

5 \times 25

What is expand (x+1)(2x^2-x-7) ?
The solution to expand (x+1)(2x^2-x-7) is 2x^3+x^2-8x-7