Ex 4.1 ,2
Represent the following situations in the form of quadratic equations : (ii) The product of two consecutive positive integers is 306. We need to find the integers.
There is a difference of 1 in consecutive integers,
Hence,
Let the first integer = x
Second integer = x + 1
Now , given that
Product of integers = 306
First integer Second integer = 306
x (x + 1) = 306
x2 + x = 306
x2 + x 306 = 0
It is the form of ax2 + bx + c = 0
Where a = 1, b = 1 , c = 306
Hence, it is a quadratic equation .

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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