Question

( (20) + (-11)+(-11)
15. Give possible expressions for the length and breadth of each of the following
rectangles, in which their areas are given:
Area : 25a2 - 35a +12
Area : 35y2 + 13y-12
​

Answer 1

Answer:

i)length = 4/5

breadth = 3/5

ii)length =-4/5

breadth = 3/7

Step-by-step explanation:

i)=25a^2 - 35a + 12

=25a^2 - 20a -15a + 12

=5a(5a -4) -3 (5a-4)

=(5a-4) (5a-3)

length = 4/5

breadth = 3/5

ii)=35 y^2 + 13y -12

=35y^2 -15y +28 y -12

=5y (7y-3) +4 (7y-3)

=(5y+4)(7y-3)

length =-4/5

breadth = 3/7