Which equation is equivalent to square root x2+81=x+10? a. x + 9 = x + 10 b. x + 9 = x2 + 20x + 100 c. x2 + 81 = x2 + 100 d. x2 + 81 = x2 + 20x + 100

Option D is correct

Step-by-step explanation:

Given the equation:

Squaring both sides we get;

Using identity rule:

then;

Therefore, equation is equivalent to

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get