What is expand (x+7)(x^2-7x+49) ?

The solution to expand (x+7)(x^2-7x+49) is x^3+343

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expand (x+7)(x^2-7x+49)

expand

(x + 7) (x^{2} - 7 x + 49)

x^{3} + 343

Solution steps

(x + 7) (x^{2} - 7 x + 49)

Distribute parentheses

= x x^{2} + x (- 7 x) + x \cdot 49 + 7 x^{2} + 7 (- 7 x) + 7 \cdot 49

Simplify

x x^{2} + x (- 7 x) + x \cdot 49 + 7 x^{2} + 7 (- 7 x) + 7 \cdot 49 : x^{3} + 343

= x^{3} + 343

18 x + 27

- 6 \cdot 9

(x + 5)^{2} - 9

x^{3} y^{2} + x y^{3} + 2 x^{2} y^{3}

t^{3} + t^{2} - 5 t + 3

What is expand (x+7)(x^2-7x+49) ?
The solution to expand (x+7)(x^2-7x+49) is x^3+343