0
9x2 = 81
x2 = 9 <-- Divide both sides by nine
x = 3 <-- Square root both sides
All in all this is NOT a difficult equation.
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How do you solve x squared equals negative 81?
x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i
What is 81 squared?
81 x 81 = 6561
What is x squared plus 9x squared?
x2 + 9x2 = 10x2
How do you evaluate 81 squared?
812 = 81 x 81 = 6,561
Solve 9x2 - 9x equals 0?
9x2-9x = 0 x2-x = 0 x(x-1) = 0 x = 1 or x = 0
How do I solve x squared plus 9x plus 14 0?
If you mean: x squared+9x+14 = 0 then by using the quadratic equation formula x = -2 or x = -7
How do you solve 3x squared -9x equals 0?
3x2-9x = 0 x(3x-9) = 0 x = 0 or x = 3
How do you factor x squared minus 9x?
x2-9x can be factored by taking x out of each term x(x-9)
What is 9x plus 27 equals -81?
9x+27 = -81 9x = -81-27 9x = -108 x = -12
What is 9x squared minus 6xy plus y squared minus 81?
The answer? There is no "answer" There cannot be an answer because they are all different. In order to make calculations, the variables have to be the same. x squared, xy, y squared are the variables, and none of them match. Therefore your "answer" must look like this: 9x squared - 6xy + y squared - 81. Hope I Helped :D
3 squared plus x equals 25 solve x?
32 + x = 259 + x = 25x = 25 - 9x = 16
Solve 9x-20 equals 61?
9x - 20 = 61 Add 20 to both sides: 9x = 81 Divide both sides by 9: x = 9
What is x squared -9x squared?
- 8x2
How do i solve 2x squared plus 9x plus 2?
Use the quadratic formula. x = -4.265564 or -0.234436
How do you solve x squared equals negative 81?
x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i
What is the answer to x squared 9x -22?
If: x square+9x-22 then it is (x-2)(x+11) when factored
How do you solve x2 - 9x?
-7
