Question

√x +√x -1 = √7 equação irracional ?

Answer 1

√x + √x - 1 = √7
√x + √x = √7 + 1
(√x + √x)² = (√7 + 1)²
(2√x)² = 7 + 2√7 + 1
4x = 8 + 2√7
x = (8 + 2√7)/4
x = (2(4 + √7))/4
x = (4 + √7)/2