Question

3(x-2)+x2-x(2-x) resolva b) (x+6)*2 c)(x-6)*2 d)(x-6).(x+6)

Answer 1

a) 3(x-2)+x2-x(2-x) 
3xX-3x2+2x-x(2-x)
3X-3x2+2x-xx(2-x)
3x-6+2x-xx(2-x)
5x-6-xx(2-x)
5x-6-(2x-XxX)
5x-6-(2x-x¹¹)
5x-6-(2x-x²)
5x-6-(2x-x²
5x-6-2x+x²
3x-6+x²
(x²+3x-6)

b)(x+6)*2 
(2XxX+2Xx6)
(2x¹¹+2Xx6)
2x²+2Xx6)
2x²+12x

c)(x-6)*2
(2XxX-2Xx6)
(2x¹¹-2Xx6)
2x²-2Xx6)
2x²-12x

d)(x-6).(x+6)
Xx(x²-6²)
Xx(x²-36)
(Xxx²-Xx36)
(x¹²-Xx36)
(x³-Xx36)
x³-36x