# CBSE Class 10-Mathematics: Chapter –4 Quadratic Equations Part 2

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Question 2:

By the method of completion of squares show that the equation had no real roots.

not a real no.

Hence QE has no real roots

Question 3:

The sum of areas of two squares is If the difference of their perimeters is , find the sides of the two squares.

Let the side of the smaller square by .

Cond. II

On solving we get

Question 4:

A dealer sells a toy for Rs. 24 and gains as much percent as the cost price of the toy. Find the cost price of the toy.

Let the C.P be x

Question 5:

A fox and an eagle lived at the top of a cliff of height , whose base was at a distance of from a point A on the ground. The fox descends the cliff and went straight to the point A. The eagle flew vertically up to a height metres and then flew in a straight line to a point A, the distance traveled by each being the same.

Find the value of