Question

solve by completing square method
${x}^{2} - 10x + 5 = 0$

Answer 1

x²-10x+5=0
x²-(2)(5)(x)+(5)²-(5)²+5=0
(x-5)²-25+5=0
(x-5)²=20
x-5=√20
x-5=+or- 2√5
x=2√5+5. x=5+2√5
x=√5(2+√5) x=√5(√5+2)