salmanderabdi12
24.11.2019 •
Mathematics
Iwill mark 1st person who is correct brainliest worth 22 points
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Ответ:
Area of the rectangle = ( x²+12x+27)unit²
Step-by-step explanation: Length = x+3 Breadth = x+9
∴ Area of Rectangle = L×B
(x+3)(x+9) = x²+9x+3x+27 = (x²+12x+27) unit²