1) (-1)² + 2(-1)(0,5) / 4(-1) - 2(-1)= 1 + (-1) / -4 + 2= 1 - 1 / -4 + 2= 0 / -4 + 2= 2
2) (4x - 3y) / (6x - 3y + 2x - y) / (2x + 5y)= (4x - 3y) / (8x - 4y) / (2x + 5y)= (4x - 3y) / 4(2x - y) / (2x + 5y)= (4x - 3y) / 4(2x - y) / (2x + 5y)= (4x - 3y) / 4(2x - y) / (2x + 5y)= 1 / (2x - y) / (2x + 5y)= 1 / 2(x - 0.5y) / 2(x + 2.5y)= 1 / 2(x - 0.5y) / 2(x + 2.5y)= 1 / 2(x - 0.5y) / 2(x + 2.5y)
1) (-1)² + 2(-1)(0,5) / 4(-1) - 2(-1)
= 1 + (-1) / -4 + 2
= 1 - 1 / -4 + 2
= 0 / -4 + 2
= 2
2) (4x - 3y) / (6x - 3y + 2x - y) / (2x + 5y)
= (4x - 3y) / (8x - 4y) / (2x + 5y)
= (4x - 3y) / 4(2x - y) / (2x + 5y)
= (4x - 3y) / 4(2x - y) / (2x + 5y)
= (4x - 3y) / 4(2x - y) / (2x + 5y)
= 1 / (2x - y) / (2x + 5y)
= 1 / 2(x - 0.5y) / 2(x + 2.5y)
= 1 / 2(x - 0.5y) / 2(x + 2.5y)
= 1 / 2(x - 0.5y) / 2(x + 2.5y)