Find zeros and verify relation b/w zeros and coefficients
1)9xx+6x+1
2)2xx-5x-3
3)3xx+8x-3
Answers
Answered by
0
Answer:
1)9x²+6x+1=0
9x²+3x+3x+1=0
3x(3x+1)+1(3x+1)=0
(3x+1)(3x+1)=0
x=-1/3,-1/3
Verification
alpha+beta=-b/a
-2/3= -6/9
-2/3 = -2/3
alpha×beta= c/a
1/9 = 1/9
2)2x²-5x-3=0
2x²-6x+1x-3=0
2x(x-3)+1(x-3)=0
(2x+1)(x-3)=0
x= -1/2,3
Verification
alpha +beta= -b/a
5/2=5/2
alpha×beta= c/a
-3/2= -3/2
3)3x²+8x-3=0
3x²+9x-1x-3=0
3x(x+3)-1(x+3)=0
(3x-1)(x+3)=0
x=1/3, -3
Verification
alpha+beta= -b/a
-8/3= -8/3
alpha×beta = c/a
-1 = -3/3
-1=-1
Hope this helps you please mark my answer as brainliest dude
Similar questions