SOLUTION: Find the possible value or values of r in the quadratic equation r^2 � 7r � 8 = 0.

SOLUTION: Find the possible value or values of r in the quadratic equation r^2 � 7r � 8 = 0.

Algebra.Com

Question 245351: Find the possible value or values of r in the quadratic equation r^2 � 7r � 8 = 0.
Answer by dabanfield(803) (Show Source): You can put this solution on YOUR website!
Factor r^2 - 7r -8 = (r-8)* (r+1)
So (r-8) * (r+1) = 0
The two solutions are r-8 = 0 and r+1 = 0
r=8 and r=-1
RELATED QUESTIONS
Find the possible value or values of r in the quadratic equation... (answered by wuwei96815)

find the possible value or values of r in the quadratic equation... (answered by ichudov)

Find the possible value or values of r in the quadratic equation... (answered by stanbon)

Find the possible values of r in this equation r^2 -7r... (answered by jsmallt9)

Find the value of r in the quadratic equation: r (to the 2nd power) - 7r - 8 = 0. (answered by jim_thompson5910)

What are the values of r in the equation... (answered by ewatrrr)

Find the possible value or values of n in the quadratic equation 2n2 � 7n + 6 =... (answered by stanbon)

find the possible value or values of y in the quadratic equation... (answered by smartdude17)

Find the possible value or values of y in the quadratic equation... (answered by longjonsilver)