9. x2=4x+96 10.25=26x-x?
11. xl-5x+3=0
12. x²+6x+3=0
13. x2-12x=0
14. -X2+7x=0
15. x2-49=0
16. -5x2+9=0
17. 81x2=0
18. 3x2-75=0
19. 8x(1+2x)= -1
20.5(x+2) = -6x-44

Question

Алгебра: 9. x2=4x+96 10.25=26x-x? 11. xl-5x+3=0 12. x²+6x+3=0 13. x2-12x=0 14. -X2+7x=0 15. x2-49=0 16. -5x2+9=0 17. 81x2=0 18. 3x2-75=0 19. 8x(1+2x)= -1 20.5(x+2) = -6x-44​

alinalisnenko · Accepted Answer

1. (x²+2x)²-2x²-4x-3=0 x^4+4x³+4x²-2x²-4x-3=0 x^4+4x³+2x²-4x-3=0 x=1 x^4+4x³+2x²-4x-3  I_x-1_ x^4-x³                  I x³+5x²+7x+3      5x³+2x²      5x³-5x²                7x²-4x            7x²-7x                            3x-3                 3x-3                                       0 x³+5x²+7x+3=0 x=-1 x³+5x+7x+3  I_x+1_ x³+x²           I x²+4x+3      4x²+7x      4x²+4x                 3x+3            3x+3                            0 x²+4x+3=0  D=4 x=-1   x=-3 2. 9^x-3^x-6 0 3^(2x)-3^x-6...

9. x2=4x+96 10.25=26x-x?11. xl-5x+3=012. x²+6x+3=013. x2-12x=014. -X2+7x=015. x2-49=016. -5x2+9=017. 81x2=018. 3x2-75=019. 8x(1+2x)= -120.5(x+2) = -6x-44​

MOGZ ответил

9. x2=4x+96 10.25=26x-x?
11. xl-5x+3=0
12. x²+6x+3=0
13. x2-12x=0
14. -X2+7x=0
15. x2-49=0
16. -5x2+9=0
17. 81x2=0
18. 3x2-75=0
19. 8x(1+2x)= -1
20.5(x+2) = -6x-44