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If you meant x2 = 16 then take square root both sides which gives x = 4 but you need to see that -42 is also 16 so that is another solution.
The two solutions are 4 and -4.
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∙ 11y ago
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X2 plus 6x-16 equals?
Equals anything... x is a variable. If that equation was set equal to zero then you could solve for x, but that is not what you have asked.
Solve x2 equals 36?
x=18
Solve the equation y' plus x2y equals x2?
(2x)ysquared
How do you solve 144x equals x2?
144X = X2 144X - X2 = 0 (144 - X)X = 0 X = 0 or X = 144
X2 equals 169 solve for x by square rooting?
x = +13x = - 13
Solve x2 equals 64?
x2 = 6482 = 64x = 8
X2 plus 6x-16 equals?
Equals anything... x is a variable. If that equation was set equal to zero then you could solve for x, but that is not what you have asked.
How do you solve x2 81 equals 0?
x: x2 - 81 = 0
Solve x2 equals 36?
x=18
Solve the equation 11-x2 equals -5?
11-x2=-5 add -11 to both sides: 11-x2-11=-5-11 -x2=-16 divide both sides by -2: (-x2)/(-2)=(-16)/(-2) x=8 If the "x2" was supposed to be "x2", meaning exponentiation, ("x squared") and not "x2", implying multiplication, ("x times two") then we'd get: x2=16 x=±4
Solve for x - x2-9x plus 14 equals 0?
x - x2 - 9x + 14 = 0 ; whence, x2 + 8x = 14 , x2 + 8x + 16 = 30 , and x + 4 = ±√30 . Therefore, x = ±√30 - 4 .
Solve the equation y' plus x2y equals x2?
(2x)ysquared
How do you solve x2 equals 9x?
Divide both sides of the equation by x: x2 = 9x x2 / x = 9x / x x = 9
How do you solve 144x equals x2?
144X = X2 144X - X2 = 0 (144 - X)X = 0 X = 0 or X = 144
Solve by factoring x2 10x -16?
Given: x2 + 10x - 16 Let: x2 + 10x - 16 = 0 x2 + 10x - 16 = 0 ∴ x2 + 10x + 25 = 16 + 25 ∴ (x + 5)2 = 41 ∴ x = -5 ± √41 ∴ x2 + 10x - 16 = (x + 5 + √41)(x + 5 - √41)
Explain how to solve x2 plus 8x -2 equals 0 by completing a square?
x2 + 8x - 2 = 0 => x2 + 8x = 2 => x2 + 8x + 16 = 2 + 16 = 18 => (x + 4)2 = 18 => x + 4 = +or- sqrt(18) = +or- 3*sqrt(2) so x = -4 +or- 3*sqrt(2)
X2 equals 169 solve for x by square rooting?
x = +13x = - 13
