Ican’t figure these three out i keep getting the wrong answers any would be

25)
(5 - 3)^3 - 3(-3)^2
= 2^3 - 3(9)
= 8 - 27
= -19

answer is D. -19

26)

= 8∛3x + 9∛3x
= 17∛3x

answer is C. 17∛3x

27)
2x^2 - 5x = -2
2x^2 - 5x +2 = 0
(2x - 1)(x -2) = 0
2x - 1; x = 1/2
x - 2 = 0; x = 2

x = 1/2 or x =2

answer is B
x = 1/2 or x =2

Step-by-step explanation:

Let x be the first integer

Let y be the 2nd integer

Let z be the 3rd integer

Given

Also given, x = 7, y = 8, z = 9, substitute x,y and z into equation.

Therefore,

x+y+z = 3y for x = 7, y = 8, z = 9.

Now lets take x = 3, y = 4, z = 5.

As you can see , x+y+z = 3y is true for any 3 consecutive numbers.