If the equation ax^2+bx+c=0 has both the roots greater than

Mekhi Cox

Mekhi Cox

Answered question

2022-04-22

If the equation ax2+bx+c=0 has both the roots greater than 2 then,
A. a(b+c)>0
B. a(a+b)>0
C. a(b+c)<0
D. a(a+b)<0

Answer & Explanation

Colonninisxi

Colonninisxi

Beginner2022-04-23Added 16 answers

Explanation:
If 2<uv and f(x)=ax2+bx+c=a(xu)(xv)
Then, a2+a(b+c)=af(1)=a2(u1)(v1)>a2
So, a(b+c)>0
So, A is correct and C is false.
Your reasoning is also valid, so B is false and D is correct.

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