ОГЭ 2015 Задание 4

Download ОГЭ 2015 Задание 4

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<p> 1. 2015. : 4 . 4. 2. 0761A0 x 7x2 3x+6 ? : 7 -2=3 +6 7 -3 =6+2 4 =8 =2 008EF4 3x+5+(x+5)=(1x)+4. : 3 +5++ 5=1- +4 3 + + =1 +4 -5 -5 5 = -5 = -1 0285A4 85(2x3)=136x. 3. 0196A7 : 6 8 8 6 064F24 : : 13(-13) =5(-5) 13 -169 =5 -25 13-5 =169 -25 8 =144 =18 13 5 5 13 4. 05386D 5x+20x=0. : 5 (+4) =0 1=0 +4 =0 2 =- 4 09A81F x5x14=0. : D= 25 +4114 =25+56 =81 1,2 = 2 95 7 2 95 1 2 2 4 2 95 2 5. 08A038 : : : 0 - 6 = - + -6 =0 1 = -3 2 =2 1 6 0ABC2A x+5xx5=0 : (+5) (+5) =0. (+5) ( -1) =0 1= -5 2= -1 3=1 6. 18BA88 (x10)=(2x). : 10 - =2- 10 = 2 - + = 2- 10 10+2 =+ 0 = -8 12 = 2 = 6 0EDCDA (x+10)=(5x). 7. 107A49 : FC1E85 : 83322 03 21 2 : : 3 - 0 - - 3 3 -2 -8 =0 1 = 4 . 2 = -2 : -2 : : 0 1 +2 3 =0 3-2-1=0 D= 4 - 4 3(-1) = 4 + 12 =16 6 42 32 42 2,1 8. 0DAEB6 (x3)(x4)(x5)=(x2)(x4)(x5). : (x3) (x4)(x5) - (x2) (x4)(x5) =0. ( - 4)(-5) (-3 +2) = 0 (-4) (-5) ( -1) =0 -4 =0 -5=0 1=4 2=5 0F641B : x(x+2x+1)=6(x+1). : ( +1) - 6 (+1) =0 (+1) ((+1) 6) = 0 (+1) ( + -6) =0 +1 =0 + -6=0 1= -1 2 = -3 3 =2 9. F6ABB3 . 03 1 2 )1( 1 2 : -1 = : -10 1 1+ -3 =0 3 - -1 =0 D = 1 - 4 3(-1) =1 +12 =13 03 11 2 6 131 32 131 2,1 6 131 1 6 131 1 6 137 6 131 11 6 137 6 131 12 10. EA3932 (x25)+(x+3x10)=0. : 0, -25 =0 +3 -10 =0 . = 5 =-5 = -5 =2 : = -5 F194A1 : (x+7)=49(x+7) : (+7) -49 (+7) =0 (+7) ((+7) - 49) = 0 (+7) ( +14 +49-49) =0 (+7) ( +14) =0 (+7) (+14) =0 1 = -7 2 =0 3 = -14 11. 05BB7E (x4)+(x+9)=2x. : -8 +16 + +18+ 81 -2 =0 10 +97 =0 10= -97 = -9,7 023E44 : : - 40 +2 =5(+4) - 40+2 = 5 +20 2 -5 =20+40 -3 =60 = -20 2 4 5 4 12. 0AFC1F (x2)(x3)=12(x2). F7FDAF 076662 </p>