Question

9 x \(\left(\dfrac{2}{3}\right)^2\) + 2 x \(\left(-\dfrac{9}{2}\right)\) + 4 x \(\left(-\dfrac{15}{7}\right)^0\)

Answer 1

`9 xx (2/3)^2 + 2 xx (-9/2) + 4 xx (-15/7)^0`

`= 9 xx 4/9 - 2 xx 9/2 + 4 xx 1`

`= 4 - 9 + 4`

`= -1`

 

Answer 2

\(9.\left(\dfrac{2}{3}\right)^2+2.\left(-\dfrac{9}{2}\right)+4.\left(-\dfrac{15}{7}\right)^0\)
\(=9.\dfrac{4}{9}+\left(-9\right)+4.1\)
\(=4-9+4\)
\(=\left(-5\right)+4\)
\(=-1\)