Question

What are the solutions of 4x2 + x = -3? (5 points) and
x2 - 7x = -12 (5 points)

Answer 1

4x^2 + x + 3 = 0

x =  [-1 +/- sqrt (1^2 - 4 * 4 * 3)]  / 8 =  - 1 +/- sqrt ( --47) / 8

=  ( - 1 +/- sqrt47i) / 8  =  -0.125 + 0.857i ,  -0.125 - 0.857i

Answer 2

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