1. If the equation ax + bx+c=0(a>0) has two roots oc and B such that o 2, then----
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Ans:Correct option is
A
b
2
−4ac>0
B
c<0
D
4a+2∣b∣+c<0
f(x)=ax
2
+bx+c=0,α<−2,β>2,a>0
∴f(0)<0
f(0)=0+0+c<0
∴c<0
D>0
∴b
2
−4ac>0
f(2)<0
4a+2b+c<0
∴4a+2∣b∣+c<0
f(−2)<0
∴4a−2b+c<0
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