Question

√x-3 +5=x La raiz cuadrada cubre hasta x-3

Answer 1

$\sqrt{x-3 } + 5 = x\\\\\sqrt{x-3 } = x - 5\\\\(\sqrt{x-3 })^{2} = (x - 5)^{2} \\\\x - 3 = x^{2} -10x + 25\\\\0 = x^{2} -10x - x +25 +3\\\\x^{2} -11x + 28 = 0$

x             - 7              

x             - 4

(x -7)(x - 4) = 0

x - 7 = 0       x - 4 = 0

x =  7          x =  4

CS = (7; 4)

Eternamente axllxa