Evaluate: $- 4 x^{2} + {(2 x^{2} - 3) - (4 - 3 x^{2})}$

Open in App

Solution

We have,
$- 4 x^{2} + {(2 x^{2} - 3) - (4 - 3 x^{2})}$
$= - 4 x^{2} + {2 x^{2} - 3 - 4 + 3 x^{2}}$
$= - 4 x^{2} + {5 x^{2} - 7}$
$= - 4 x^{2} + 5 x^{2} - 7 = x^{2} - 7$

Suggest Corrections

Similar questions

\frac{- 5}{3} x^{2} - \frac{3}{4} x^{2} - \frac{4}{3} x^{2} - \frac{1}{4} x^{2} + x^{2}

\begin{matrix} {lim}_{x \to 1} \frac{x^{2} - 3 x + 2}{x^{2} - 4 x + 3} {lim}_{x \to 2} \frac{x^{3} + x^{2} - 12}{x^{3} - x^{2} - x - 2} {lim}_{x \to \sqrt{2}} \frac{x^{2} + x \sqrt{2} - 4}{x^{2} - 3 x \sqrt{2} + 4} {lim}_{x \to 3} \frac{x^{3} - 3 x^{2} - x + 3}{x^{3} - 6 x^{2} + 9 x} \end{matrix}

\frac{3 x^{2} - x - 4}{9 x^{2} - 16} \div \frac{4 x^{2} - 4}{3 x^{2} - 2 x - 1}

\int \frac{3 x^{2} + 4 x + 3}{(x - 2) (x^{2} + 3 x + 2)} d x

Join BYJU'S Learning Program