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If x=-2 is a solution of the equation x^2+bx+6=0 what is the value of b

If x=-2 is a solution of the equation x^2+bx+6=0 what is the value of b
asked 64.1k views
1 vote
If x=-2 is a solution of the equation x^2+bx+6=0 what is the value of b

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User Quervernetzt
by
8.4k points

1 Answer

4 votes

u know x = -2


x²+bx+6=0

(-2)²+b(-2)+6 =0
4 -2b +6 = 0
-2b +6+4 =0

-2 b = -10
b= -10/-2
b= 5
answered
User Sandeep Balagopal
by
8.1k points
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