Question

The area of rectangle is4a² +24a +36 & breadth is (2a + 6). Find its length.​

Answer 1

Step-by-step explanation:

$l \times b = area \\ l = area \div b \\ l = ( {4a}^{2} + 24a + 36) \div (2a + 6) \\ l = (2a + 6) \\ \\ therefore \: length = 2a + 6$

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Answer 2

Answer:

length=2a+6

Step-by-step explanation:

area = length × breadth

4a²+24a+36 = l × (2a+6)

l =$\frac{4a^2+24a+36}{2a+6}$

$l =\frac{2a^2+12a+18}{a+3}$

$l=2a+6$