Question

Prove that lx²-2x-3l<5​

Answer 1

Answer:

Given, (l−m)x

2

−5(l+m)x−2(l−m)=0

The standard quadratic equation is ax

2

+bx+c=0

here, D=b

2

−4ac=25(l+m)

2

+8(l−m)

2

>0

Therefore, the roots are real and unequal.

Step-by-step explanation:

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