The value of (2.3)^3-0.027 (2.3)^2+0.69+0.09 , is: - Vidyadip

Question

The value of $\frac{(2.3)^3-0.027}{(2.3)^2+0.69+0.09},$ is:

✓

Answer

2

Solution:
$\frac{(2.3)^3-0.027}{(2.3)^2+0.69+0.09}$
$=\frac{(2.3)^3-(0.3)^3}{(2.3)^2+(0.3)^3+(2.3)(0.3)}$
$=\frac{(2.3 - 0.3)\{(2.3)^2+(0.3)^2+(2.3)(0.3)\}}{((2.3)^2+(0.3)^2+(2.3)(0.3))}$
$=2.3 - 0.3$
$=2$
Hence, correct option is (a).

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