answersLogoWhite

0


Best Answer

Do you mean?

X^2 - 121 = 0

add 121 to each side

X^2 = 121

take square root of each side

x = (+/-) 11

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is x2 121 equals 0?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What number must you add to complete the square x2 plus 22x equals 0?

it is 121


What is the solution to the equation x2 plus 3 equals 124?

x2+3=124 x2=121 x= square root(121) x=11


What is the discriminant in the quadratic equation x squared plus 11x plus 121 equals x plus 96?

x2+11x+121 = x+96 x2+11x-x+121-96 = 0 x2+10x+25 = 0 Discriminant = b2-4ac = 102-4*1*25 = 0 The discriminant is equal to 0 so the quadratic equation will have two equal roots. (x+5)(x+5) = 0 Therefore: x = -5 and also x = -5 the answer is 0


What number is needed to complete the square x2 23x equals 0?

x2 23x equals 0


How do you solve x2 81 equals 0?

x: x2 - 81 = 0


X2 - 4 equals 0?

If: x2-4 = 0 Then: x = 2


X2 y2 equals 121 what is the radius?

If this is the equation of a circle, the answer is 11, except that there needs to be a plus sigb between the x2 and the y2


The equation for the circle below is x2 plus y2 equals 121 What is the length of the circles radius?

11 = sqrt of 121. it is a circle centred on the origin think what would happen on the line x=0 (The y axis) the equation simplifies to y2 = 121 or y =11 you can also think of eqn of a circle as x2+y2=r2


Solution set of x2 plus 49 equals 0?

x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i


What is x2 plus 7x equals - 2x2 plus 6 in the form ax2 bx c equals 0?

x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0


How do you solve 144x equals x2?

144X = X2 144X - X2 = 0 (144 - X)X = 0 X = 0 or X = 144


How many solutions to x2-10 equals 0?

x2-10 = 0 x2 = 10 x = the square root of 10