Question

Помогите:(1-7 x)(1+7x)-(2x-1)​

Answer 1

Решить данное выражение.

(1 - 7 * x) * (1 + 7 * x) * (2 * x - 1)

(1 - 49 * x^2) * (2 * x - 1)

- 98 * x^3 + 49 * x^2 + 2 * x - 1

Итог: - 98 * x^3 + 49 * x^2 + 2 * x - 1

Answer 2

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Answer 3

To simplify the expression (1-7+x)(1+7x)-(2x-1), we can use the distributive property and combine like terms. Let's break it down step by step:

Step 1: Apply the distributive property (1-7+x)(1+7x) can be expanded as follows: 1 * 1 + 1 * 7x + (-7) * 1 + (-7) * 7x + x * 1 + x * 7x

Simplifying further: 1 + 7x - 7 + (-49x) + x + 7x^2

Step 2: Combine like terms Combine the terms with the same variable and exponent: 1 - 7 + x + 7x - 49x + x + 7x^2

Simplifying further: -6 + 9x - 49x + 7x^2

Step 3: Simplify Combine the like terms with the variable 'x': -6 - 40x + 7x^2

So, the simplified expression is -6 - 40x + 7x^2.

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