Question

помогите с алгеброй срочно

Answer 1

1
a) (3+x)^2 = 9 + 6x + x^2
б) (2x-1)^2 = 4x^2 -4x+1
в) (3x-4y)^2 = 9x^2 - 24xy + 16y^2
г) (x^2+5)^2=x^4 + 10x^2 + 25
2
x^2 + 4x + 4 = (x+2)^2
25x^2 - 10xy + y^2 = (5x-y)^2
3
(7x-2)^2 + 28x = 49x^2 - 28x + 4 = 49x^2 + 4

32y - 2(1+8y)^2 = 32y - 2(1+ 16y + 64y^2) = -2(1+64y^2)