Posted by Anonymous on Saturday, April 6, 2013 at 2:53pm.
Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = 2x^2 + 5x + 7.
a) {3.50, –1.00}
b) {2, 5}
c) {–2.50, –3.50}
d) {–0.29, 0.71}

math  MathMate, Saturday, April 6, 2013 at 6:09pm
The roots p,q, of the equation
ax²+bx+c=0
have the properties that:
p*q = c/a
p+q =b/a
Check each of the solution sets above,
c/a=3.5
If p*q ≠ 3.5, then p and q are not solutions to the equation.
If p*q = 3.5, then check if p+q = b/a=2.5.
If both conditions are satisfied, p and q form the solution set to the equation.
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