Question

(c) The area of a rectangle is x2 + 7x + 12 . If its breadth is (x + 3), then find its length.
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Answer 1

Answer:

length =(x+4)

Step-by-step explanation:

The area of a rectangle is x^2+7x+12

breadth is (x+3)

area =length×breadth

so, length = area/breadth

=(x^2+7x+12)/(x+3)

=(x^2+4x+3x+12)/(x+3)

={x(x+4)+3(x+4)}/(x+3)

=(x+4)(x+3)/(x+3)

=(x+4)