Question

4) x ( 35 – x2 + 7x - 1);​

Answer 1

Раскроем скобки:

$35x - {x}^{3} + 7x^{2} - x$

$34x - {x}^{3} + {7x}^{2}$

Выведем х за скобки:

$x(34 - {x}^{2} + 7x)$

Answer 2

To simplify the expression $x(35 - x^2 + 7x - 1)$, you can distribute the $x$ to each term inside the parentheses and then combine like terms:

$x(35 - x^2 + 7x - 1) = 35x - x^3 + 7x^2 - x$

Now, you can rearrange the terms in descending order of the exponent of $x$:

$-x^3 + 7x^2 - x + 35x$

Finally, you can combine the like terms:

$-x^3 + 7x^2 + 34x$

So, the simplified expression is $-x^3 + 7x^2 + 34x$.