Question

9 si 10 va rog frumos imi trebuie pe mine dau coroana ​

Answer 1

Răspuns:

Explicație pas cu pas:

9.

3(x + 1) - a(x + 1) = (x + 1)(3 - a)

______________

x^2(x - 3) - 9(x - 3) = (x - 3)(x^2 - 9) = (x - 3)(x + 3)(x - 3) = (x + 3)(x - 3)^2

______________

4x^2(1 - 2x) + (2x - 1) = 4x^2(1 - 2x) - (1 - 2x) = (1 - 2x)(4x^2 - 1)

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

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3(x + 1) + x^2 - 1 = 3(x + 1) + (x + 1)(x - 1) = (x + 1)(3 + x - 1) = (x + 1)(x = 2)

________________

x(2x + 5) + 4x^2 - 25 = x(2x + 5) + (2x + 5)(2x - 5)

= (2x + 5)(x + 2x - 5) = (2x + 5)(3x - 5)

______________

6(3x - 4) + 9x^2 - 16 = 6(3x - 4) + (3x + 4)(3x - 4)

= (3x - 4)(6 + 3x + 4) = (3x - 4)(3x + 10)

_____________

7(x + √3) + x^2 - 3 = 7(x + √3) + (x + √3)(x - √3)

= (x + √3)(7 + x - √3)

____________

x^2(x + 5) - (x^2 + 10x + 25) = x^2(x + 5) - (x + 5)^2

= (x + 5)(x^2 - x - 5)