Solve with either Substitution or Eleminiton 2x – 9y = 32 4x + y = -12
2 answers:
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Combine like terms:
Solve for a:
Your answer: a = -7.5
Let's solve this by using the quadratic formula:
Note that we only use the coefficients so a=12, b=-14, and c=-6.
Plug values in the quadratic equation:
And so by evaluating those values we obtain:
Now we have two answers which are our factors one where we add another where we subtract and so:
First factor:
Second Factor:
And so your factors are
meaning that those are your roots/x-intercepts.