Question

x2 - 2x =56
find the value of x​

Answer 1

Answer:

x-27

Step-by-step explanation:

2-2x=56

2x=56-2

2x=54

x=54/2

x=27

Answer 2

Answer:

1-sqrt57, 1+sqrt57

Step-by-step explanation:

x²-2x-56=0

$x = \frac{ - b + - \sqrt{b ^{2} - 4ac } }{2a}$

Put a=1, b=-2, c=-56

you'll get x= 1-sqrt57 and x= 1+sqrt57

sqrt= square root