Question

Rozwiąż i sprawdz nastepujace rownania

(2x - 5) * 2x - 4 (x² + 1)=1

(x-4)(x+1)+4(x+2)=x²-3

(x-3(x+3)-(x-2)²=19

1+2x²+(x+5)²-2(x+7)(x-7)=(x-6)²

(x-⅓)²-(x+2)(x-2)+₉⁸=(x+5)²-x²-⅔x

(2x-3)²-(1-x)(1+x)+x=(3x-1)²+(1-2x)(2x+1)-9

PILNE I WAŻNE DO 2 MARCA GODZ. 00:00

Answer 1

(2x - 5) * 2x - 4 (x² + 1)=1

4x²-10x-4x²-4-1=0

-10x-5=0

-10x=5

x=-½

(x-4)(x+1)+4(x+2)=x²-3

x²-3x-4+4x+8=x²-3

x²-x²+x+4+3=0

x+7=0

x=-7

(x-3)(x+3)-(x-2)²=19

x²-9-x²+4x-4=19

4x-13=19

4x=32

x=8

1+2x²+(x+5)²-2(x+7)(x-7)=(x-6)²

1+2x²+x²+10x+25-2x²+98=x²-12x+36

x²-x²+10x+12x+124-36=0

22x+88=0

x=-4

(x-⅓)²-(x+2)(x-2)+₉⁸=(x+5)²-x²-⅔x

x²-⅔x+¹/₉-x²+4x+⁸/₉=x²+10x+25-x²-⅔x

3⅓x+1=9⅓x+25

3⅓x-9⅓x=25-1

-6x=24

x=-4

(2x-3)²-(1-x)(1+x)+x=(3x-1)²+(1-2x)(2x+1)-9

4x²-12x+9-1+x²+x=9x²-6x+1+1-4x²-9

5x²-11x+8=5x²-6x-7

-11x+6x=-7-8

-5x=-15

x=3