if you mean X²+8X-5=0: X1=-8/2 - Square root of ((8/2)²+5) X1=-4 - Square root of 21 X1 is about -8.58 X2=-8/2 + Square root of ((8/2)²+5) X2=-4 + Square root of 21 X2 is about 0.58
if sqrt(x) + 8 = 0, then: x1/2+8 = 0 x1/2 = -8 (x1/2)2 = (-8)2 x = 64 √x + 8 = 0 is a contradiction equation, because the equivalent equation √x = -8 is not a true statement, because √x = |x| = positive. So that, - √x + 8 = 0 is true for x = 64.
X1 = -81
5/8 x1/20 = 1/32
5 kinds can be made: (width x length) 1 x 16 2 x 8 4 x 4 8 x 2 16 x1
sqr.rtx/x= sqrt.x*sqr.rtx/sqr.rtx=x/x*sqrt.x=1/sqrt.x. x1/2 = x1/2 * x1/2 = x = 1 (x1/2) /x= 1/x1/2
Suppose you have a differentiable function of x, f(x) and you are seeking the root of f(x): that is, a solution to f(x) = 0.Suppose x1 is the first approximation to the root, and suppose the exact root is at x = x1+h : that is f(x1+h) = 0.Let f'(x) be the derivative of f(x) at x, then, by definition,f'(x1) = limit, as h tends to 0, of {f(x1+h) - f(x1)}/hthen, since f(x1+h) = 0, f'(x1) = -f(x1)/h [approx] or h = -f'(x1)/f(x1) [approx]and so a better estimate of the root is x2 = x1 + h = x1 - f'(x1)/f(x1).
The 2013 BMW X1 is 5 ft. 10.8 in. (70.8 in.)17 x 7.5 in. wheels wide.
we have the points (3,4) and (8,-6) let x1=3 y1=4 x2=8 y2=-6 slope=(y2-y1)/(x2-x1) =(-6-4)/(8-3) =-10/5 =-2
we have the points (3,4) and (8,-6) let x1=3 y1=4 x2=8 y2=-6 slope=(y2-y1)/(x2-x1) =(-6-4)/(8-3) =-10/5 =-2
it equals x1 it equals x1
Point-slope form: y - y1 = m(x - x1) y+6=-1/8(x+4)