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Which are the solutions of x2 = –7x – 8?
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4 votes
Which are the solutions of x2 = –7x – 8?

User Firelynx
by
7.8k points

2 Answers

2 votes

Answer:

the answer is C

Explanation:


User Naveen Dennis
by
7.6k points
3 votes
add 7x+8 to both sides
x^2+7x+8=0
use quadracit formula
x=
(-b+/- √(b^2-4ac) )/(2a)
a=1
b=7
c=8


x=
(-7+/- √(7^2-4(1)(8)) )/(2(1))
x=
(-7+/- √(49-32) )/(2)
x=
(-7+/- √(17) )/(2)
aprox
x=-5.56155 or -1.438
User Juniperi
by
8.1k points
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