SOLUTION: 4p^2-12p-91=0

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Question 434982: 4p^2-12p-91=0
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
4p%5E2-12p-91=0....use quadratic formula
p+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+......a=4, b=-12 and c=-91
p+=+%28-%28-12%29+%2B-+sqrt%28%28-12%29%5E2-4%2A4%2A%28-91%29+%29%29%2F%282%2A4%29+
p+=+%2812+%2B-+sqrt%28144-%28-1456%29+%29%29%2F8+
p+=+%2812+%2B-+sqrt%28144%2B1456%29%29%2F8+
p+=+%2812+%2B-+sqrt%281600%29%29%2F8+
p+=+%2812+%2B-+40%29%2F8+

p1+=+%2812+%2B+40%29%2F8+
p1+=+52%2F8+
p1+=+6.5+

p2+=+%2812+-+40%29%2F8+
p2+=+28%2F8+
p2+=+3.5


+graph%28+500%2C+500%2C+-30%2C+30%2C+-100%2C+30%2C+4x%5E2-12x-91%29+