(x+5)(x+2)-3(4x-3)=(x-5)²
12-2(x-1)²=4(x-2)-(x-3)*(2x-5)
PIlne ! :(
x²+2x+5x+10-12x+9=x²-10x+25
5x=6 /:5
x=6/5
x=1,2
12-2(x²-2x+1)=4x-8-(2x²-5x-6x+15)
12-2x²+4x-2=4x-8-2x²+5x+6x-15
-11x= -33 /:(-11)
x=3
(x + 5)(x + 2) - 3(4x-3) = (x-5)²
x² + 2x + 5x + 10 - 12x + 9 = x² - 10x + 25
x² - 5x + 19 = x² - 10x + 25
-5x + 19 = -10x + 25
5x + 19 = 25
5x = 6
x = 6/5
12 - 2(x² - 2x + 1) = 4x - 8 - (2x² - 5x - 6x + 15)
12 - 2x² + 4x - 2 = 4x - 8 -2x² + 5x + 6x - 15
- 2x² + 4x + 10 = - 2x² + 15x - 23
4x + 10 = 15x - 23
- 11 x = - 33
x = 3
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(x+5)(x+2)-3(4x-3)=(x-5)²
x²+2x+5x+10-12x+9=x²-10x+25
5x=6 /:5
x=6/5
x=1,2
12-2(x-1)²=4(x-2)-(x-3)*(2x-5)
12-2(x²-2x+1)=4x-8-(2x²-5x-6x+15)
12-2x²+4x-2=4x-8-2x²+5x+6x-15
-11x= -33 /:(-11)
x=3
(x + 5)(x + 2) - 3(4x-3) = (x-5)²
x² + 2x + 5x + 10 - 12x + 9 = x² - 10x + 25
x² - 5x + 19 = x² - 10x + 25
-5x + 19 = -10x + 25
5x + 19 = 25
5x = 6
x = 6/5
12-2(x-1)²=4(x-2)-(x-3)*(2x-5)
12 - 2(x² - 2x + 1) = 4x - 8 - (2x² - 5x - 6x + 15)
12 - 2x² + 4x - 2 = 4x - 8 -2x² + 5x + 6x - 15
- 2x² + 4x + 10 = - 2x² + 15x - 23
4x + 10 = 15x - 23
- 11 x = - 33
x = 3