Question

Repede va rog
1. 4x(2x+4x-3)+(7x+2)=
2. (9x-5)+(7x+2)=
3. 3x(4x-9)-x(4x+3)=
4. (X+7)+(3x-2)+x(x-1)=
5. (2x-5)+(4x+9)=
6. (4x-3)+(6x+5)=
7. 9x(x-x+3)-7x(x+3x+4)=
8. 3x(2x+x+3)+5x(6x-2x-5)=

Answer 1

1 8x^2+16x^2-12x+7x+2=24x^2-5x+2=x(24x-5)+2
2. 9x-5+7x+2=16x-3
3. 12x^2-27x-4^2-3x=9x^2-30x=3x(3x-10)
4.x+7+3x-2+2x-x=5x+5=5(x+1)
5. 2x-5+4x+9=6x+4=2(3x+2)
6. 4x-3+6x+5=10x+2=2(5x+1)
7. 9x^2-9x^2+27x-7x^2-21x^2-28x
=-28^2x-x=x(28x-1)
8. 6x^2+3x^2+9x+30x^2-10x^2-25x
=29x^2-16x=x(29x-16)