Question

(5ײ+7×-8)-(3ײ+9×-4)

Answer 1

Ответ:

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Answer 2

(5x²+7x-8)-(3x²+9x-4)=5x²+7x-8-3x²-9x+4=2x²-2x-4

Answer 3

To simplify the expression $(5x^2 + 7x - 8) - (3x^2 + 9x - 4)$, we'll distribute the negative sign and then combine like terms:

First, distribute the negative sign to each term inside the parentheses:

$5x^2 + 7x - 8 - 3x^2 - 9x + 4$

Next, combine like terms by adding or subtracting the coefficients of the same-degree terms:

$(5x^2 - 3x^2) + (7x - 9x) + (-8 + 4)$

$2x^2 - 2x - 4$

So, $(5x^2 + 7x - 8) - (3x^2 + 9x - 4)$ simplifies to $2x^2 - 2x - 4$.