pomożecie? błagam mam to na jutro a nie moge 1 dostac daje wszystkie swoje punkty pytania w załączniku

[latex](7x-4)(-x+2)-4x+6(x^2-x+8)=\\=-7x^2+14x+4x-8-4x+6 x^2-6x+48 =\\=- x^2+8x +40[/latex] [latex]21+(5x-3)(1+x)+8-(6x-7+4x^2)=\\=21+5x+5x^2-3-3x +8- 6x+7-4x^2 =\\=x^2 -4x +33[/latex] [latex]17+(6x-1)(-x+1)+8x-(9x-3+10x^2) =\\=17-6x^2+6x+x-1 +8x- 9x+3-10x^2 =\\= -16x^2+6x +19[/latex] [latex]10+(2a+1)(2a-1)-8(5a^2+4)=\\10+4a^2-1-40a^2-32=\\= -36a^2-23[/latex] [latex](x+2)(x-3)=x^2+5\\x^2-3x+2x-6=x^2+5\\x^2-3x+2x -x^2=5+6 \\ -x =11 / *(-1)\\x=-11[/latex] [latex](x+9)(x-5)=x^2+9x\\x^2-5x+9x-45 =x^2+9x\\x^2-5x+9x -x^2-9x=45\\ -5x =45 / :(-5)\\x=-9[/latex] [latex]-8(x+2)+3x=5(4-3x)+10\\-8 x-16+3x=20-15x +10\\-8 x +3x+15x=20 +10+16\\10x=46 / :10 \\x=4,6[/latex] [latex]frac{x+1}{3}=2+frac{x-2}{6} / *6 \\2(x+1)=12+x-2\\ 2 x+2=12+x-2\\2x-x=12-2-2\\x=8[/latex]