Find the solution set x^2-7x-8=0 separate the two values with a comma

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asked Jul 8, 2018 183k views

1 Answer

Tersakyan · Answer 1 · 2018-07-14T01:24:15+0000

a=1 b=-7 c=-8
Using the quadratic formula:
x = --7 +-sq root(49 -4*1*-8)/2*1
x = 7 +-sq root(49 +32)/2
x1 = (7 + 9) / 2 = 8
x2 = (7 - 9) / 2 = -1

answers (8,-1)

Find the solution set x^2-7x-8=0 separate the two values with a comma

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