Question

can someone plz help with this question
Solve. x2 – 10x = 5

Answer 1

@jim_thompson5910

Answer 2

8x=5
what are the answer chioces

Answer 3

choices are:
a. 5+-2sqrt5
b.5+-sqrt30
c.5+-sqrt15
d.5+-sqrt10

Answer 4

i think it b

Answer 5

ok thanks

Answer 6

x^2-10x-5=0
Completing the square get:
x^2-10x+25 = 5+25
(x-5)^2 = 30
x-5=sqrt30 or x-5=-sqrt30
x=5+sqrt30 or x=5-sqrt30