Question

(x + 5) (x + 6) (x + 7)​

Answer 1

Answer:

Step-by-step explanation:

first multiplying 1st and 2nd.

(x+5) (x+6)

= x^2+6x+5x+30

= x^2+11x+30

Now multiply it by 3.

(x^2+11x+30) (x+7)

= x^3+7x^2+11x^2+77x+ 30x+210

= x^3+ 18x^2+ 107x+210

Answer 2

Answer:

$(x + 5)(x + 6)(x + 7)$

$= ({x}^{2} + 6x + 5x + 30)(x + 7)$

$= ( {x}^{2} + 11x + 30)(x + 7)$

$= {x}^{3} + {7x}^{2} + {11x}^{2} + 77x + 30x + 210$

$= {x}^{3} + {18x}^{2} + 107x + 210$