SOLUTION: Find all real solutions of the equation. (Use any method) a. x^2 - 0.011x - 0.064 = 0
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Question 1014213
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Find all real solutions of the equation. (Use any method)
a. x^2 - 0.011x - 0.064 = 0
Answer by
Theo(13342)
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i used the quadratic formula because it didn't look like it could be factored easily, if at all.
quadratic formula is:
-b - sqrt(b^2-4ac) x = --------------------- 2a or: -b + sqrt(b^2-4ac) x = --------------------- 2a
your equation is in standard form ax^2 + bx + c = 0
a is the coefficient of the x^2 term.
b is the coefficient of the x term.
c is the contant term.
your equation is x^2 - 0.011x - 0.064 = 0
that means that:
a = 1
b = -.011
c = .064
just replace the variables in the equation and solve for x.
you will get:
x = -.24754199.... or x = .25854199...
round as required.
you could also have graphed this equation using a graphing calculator and would have gotten the same answer.
here's the graph that i did.