Question

a) (2x+1).(2x-1)=


b)(2x+1)³=


c)(2x-1)³=


alguém??? ​

Answer 1

a)

$(2x \times 1)(2x - 1) = 2x {}^{2} - 1 {}^{2}$

b)

$(2x + 1) {}^{3} = (2x + 1)(2x + 1) {}^{2}$

c)

$(2x - 1) {}^{3} = (2x - 1)(2 x - 1) {}^{2}$