Square root of(x^2-4x-5)=2x-10

x = 7

x = 5

Step-by-step explanation:

We square both sides to get rid of the square root.

We know (a + b)^2 = a^2 + 2ab + b^2 so now the right side becomes,

Now move everything to the right side,

Now we can take 3 common ,

now this is a simple quadratic equation, we can use two methods.

1) Quadratic formula

2) Factorize

We use the factorizing method,

we need two numbers when multiplied give us +35 and when added give us -12 so the numbers are -7 and -5 because -7 x -5 = +35 and

- 7 - 5 = -12

answer: do we write it

step-by-step explanation: