Question

area of a rectangle is x²+ 7x + 12.if its breath is (x+3) then what will be its length


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Answer 1

Step-by-step explanation:

Given,

Area of rectangle A=x

2

+7x+12

Length L=x+3

Breadth B=?

Area of rectangle A=L×B

⇒x

2

+7x+12=(x+2)×B

⇒B=

x+3

x

2

+7x+12

=

2+3

2

2

+7(2)+12

=

5

30

∴Breadth=6

HOPE IT HELPS YOU

Answer 2

Answer:

L = (X+4)

Step-by-step explanation:

Area of rectangle = l × b

by factoring x^2+7x+12

(X+4)(X+3) = L× (X+3)

(X+4)(X+3)/(X+3) = L

(X+4) = L

L = ( X+4 )

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