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Solve the equation by graphing x^2 + 7x + 19 = 0 Choices:) A.) x = 49 B.) no solution C.) x = 19 D.) x = 12 Let f(x) = x^2 + 6 and g(x) = x+8/x. Find (g times f)(-7) Choices :) A.) -55/7 B.) 384/7 C.) 295/49 D.) 63/55

Algebra
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do you know the quadratic formula?
For witch one ?
What I have in the question's is all that I have to figure out the answer's.

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Other answers:

for the first one, you can use the quadratic formula, which looks like this: \[x=\frac{ -b \pm \sqrt{b^{2}-4ac} }{ 2a }\] where your original equation is in the form ax^2+bx+c try this, and see what you get
Ok, thanks
for the second one, multiply g and f together. whatever you get, plug in -7 for x, and simplify it try this and see what you get
for number one. just check the value of D (discriminant), with D=b^2-4ac if D < 0, it means gives no solution...

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