Question

5(6x - 3) + (x - 5)(7 + x) упростите выражение пожалуйста, срочно

Answer 1

Ответ:

5(6x - 3) + (x - 5)(7 + x)

30х-15+7х+х²-35-5х

32х-50+х²

х²+32х-50

Answer 2

Simplifying the Expression

To simplify the expression 5(6x - 3) + (x - 5)(7 + x), we can follow the order of operations (PEMDAS) and apply the distributive property.

1. Start by simplifying the expression within the parentheses: - 6x - 3 cannot be simplified further. - 7 + x cannot be simplified further.

2. Apply the distributive property by multiplying each term outside the parentheses by each term inside the parentheses: - 5(6x - 3) = 30x - 15 - (x - 5)(7 + x) = (x - 5)(x) + (x - 5)(7) = x^2 - 5x + 7x - 35 = x^2 + 2x - 35

3. Combine like terms: - 30x - 15 + x^2 + 2x - 35 = x^2 + 32x - 50

Therefore, the simplified expression is x^2 + 32x - 50.