Practicing Success
If $\left(2 \mathrm{a}+\frac{3}{a}-1\right)=11$, what is the value of $\left(4 a^2+\frac{9}{a^2}\right) ?$ |
121 148 132 110 |
132 |
If $K+\frac{1}{K}=n$ then, $K^2+\frac{1}{K^2}$ = n2 – 2 If $\left(2 \mathrm{a}+\frac{3}{a}-1\right)=11$ Then, $\left(2 \mathrm{a}+\frac{3}{a}\right)=11+1=12$ what is the value of $\left(4 a^2+\frac{9}{a^2}\right) ?$ = 122 – 2 × 2 × 3 = 132 |