Question

√х+12-√5-х=3 допоможіть

Answer 1

(√(x+12))∧2 = (√(5 - x) + 3))∧2
x+12 = 5 - x + 6*(√(5-x)) + 9
2x - 2  = 6*(√(5 - x)
(x - 1)∧2 = (3*√(5-x))∧2
x∧2 - 2x + 1 = 9*(5 -x)
x∧2 + 7x  - 44 = 0
x1 = -11
x2 = 4