ikramhamideh
19.07.2019 •
Chemistry
The dissociation of a/an releases hydrogen ions and increases the concentration of hydrogen ions in a solution.
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Ответ:
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