Question

The length of a rectangle is 5 cm more than its breadth. If the perimeter of the rectangle is 40cm. Find the length and breadth of the rectangle.​

Answer 1

Answer:

If x

2

−2px+8p−15=0 has equal roots, then p equals

EASY

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ANSWER

let the root be α then

2α=2P⇒α=P.....(1)

and

α

2

=8P−15=8α−15

α

2

=3α−5α+15=0

⇒(α−3)(α−5)=0

α=3 or 5⇒P=3 or 5

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