Question

3x-1+6x в квадрате Алгебра 8 класс

Answer 1

Решение:
$3x - 1 + 6x = 3x(1 + 2) - 1 = 9x - 1$

Answer 2

To simplify the expression (3x - 1 + 6x)^2, we can follow the order of operations, which is:

1. Perform any calculations inside parentheses.
2. Exponents (ie: powers and square roots, etc.)
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Using these rules, we can first simplify the expression inside the parentheses:

3x - 1 + 6x = 9x - 1

Next, we can square this simplified expression:

(9x - 1)^2 = (9x)^2 - 2(9x)(1) + (1)^2

= 81x^2 - 18x + 1

Therefore, the simplified expression is 81x^2 - 18x + 1.