Evaluate z^2−3 z+4 , when z=−4
2 answers:
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A)<span>calculate the cost of one T-shirt
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You write the equation like this:
But if you want to solve it then you do it like this:
But if you want to solve it then you do it like this:
The solution to given quadratic equation is x = -0.3851 or x = 10.3851
<em><u>Solution:</u></em>
Given equation is:
To find: solve by quadratic equation formula
Using the above formula,
<u><em>Substituting the values of a = -4 ; b = 40 ; c = 16 in above quadratic formula we get,</em></u>
Thus the solution to given quadratic equation is x = - 0.3851 or x = 10.3851