Question

the lenght of rectangle exceed its breath by 9 cm if the lengh and breath are each increased by 3 cm the area of the nee rectangle will be 84 cm 2 more than that of yhe given rectangle find the lenght and breath ?ans is lenght is 17 cm and breath is 8 cm

Answer 1

Breadth = x

Length = x + 9

(x + 3) (x + 12) = x (x+9)] + 84

x² + 12x + 3x + 36 = x² + 9x + 84

6x = 48

x = 8

Breadth = 8cm

Length =x + 9 = 17cm