Question

zadanie w załączniku

nierówności

Answer 1

1. x² +8x +16 = (x+4)²

2. x² -6x +9 = (x -3)²

3. 4x² -4x +1 = (2x -1)²

4. 25x² +10x +1 = (5x+1)²

5. 4x² +12x +9 = (2x+3)²

6. 9x² -3x + 1/4 = (3x- 1/2)²

 

 

 

Answer 2

1.

x²+8x+16 = (x+4)²

x+4 = 0   => x = -4

 

2.

x²-6x+9 = (x-3)²

x-3 = 0   => x = 3

 

3.

4x²-4x+1 = (2x-1)²

2x-1 = 0   => x = ½

 

4.

25x²+10x+1 = (5x+1)²

5x+1 = 0   => x = -⅕

 

5.

4x²+12x+9 = (2x+3)²

2x+3 = 0   => x = -1,5

 

6.

9x²-3x+¼ = (3x+½)²

3x+½ = 0   => x = -⅙