0
Answer
x1 = [-b + sqrt(b2 - 4ac)]/2a
x2 = [-b - sqrt(b2 - 4ac)]/2a
a = 1
b = 5
c = -25
We get the same answers as above.
Use the quadratic equation formula:
x2 + 5x - 25 = 0
(x + 8.090169944).(x - 3.090169944) = 0
Therefore: x = - 8.090169944 or x = 3.090169944
Check that the answer is correct by multiplying out the brackets.
x1 = [-b + sqrt(b2 - 4ac)]/2a
x2 = [-b - sqrt(b2 - 4ac)]/2a
a = 1
b = 5
c = -25
We get the same answers as above.
What else can I help you with?
Related Questions
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