Question

1) Form quadratic equations if the area of rectangle whose length is greater than breadth by 'cm' . is 45 sq. cm​

Answer 1

Answer:

Let breadth = x,

∴L=4+x

Area=(x)(4+x)=45

4x+x

2

=45

x

2

+4x−45=0

(x+9)(x−5)=0

x=5

x=−9 not possible

∴ Length = x+4

= 5+4

= 9