RD Sharma Class 10 Solutions chapter 8 Quadratic Equations Ex 8.3 Q19

## RD Sharma Class 10 Solutions chapter 8 Quadratic Equations Ex 8.3 Q19  https://www.udemy.com/ncert-solutions-for-class-10th-maths-term-2-sa2/?couponCode=gyanpub
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Introduction
In Chapter 2, you have studied different types of polynomials. One type was the
quadratic polynomial of the form ax2
+ bx + c, a ? 0. When we equate this polynomial
to zero, we get a quadratic equation. Quadratic equations come up when we deal with
many real-life situations. For instance, suppose a
charity trust decides to build a prayer hall having
a carpet area of 300 square metres with its length
one metre more than twice its breadth. What
should be the length and breadth of the hall?
Suppose the breadth of the hall is x metres. Then,
its length should be (2x + 1) metres. We can depict
this information pictorially as shown in Fig. 4.1.
Now, area of the hall = (2x + 1). x m2
= (2×2
+ x) m2
So, 2×2
+ x = 300 (Given)
Therefore, 2×2
+ x â€“ 300 = 0
So, the breadth of the hall should satisfy the equation 2×2
+ x â€“ 300 = 0 which is a