Find the value of polynomial $5 x - 4 x^{2} + 3$ at $x = - 1$ .

Open in App

Solution

Given the polynomial $p (x) = 5 x - 4 x^{2} + 3$

Put $x = - 1$ and we get,

$p (- 1) = 5 \times (- 1) - 4 \times {(- 1)}^{2} + 3$

$p (x) = - 5 - 4 + 3$

$p (x) = - 6$
Hence, this is the answer.

Suggest Corrections

Similar questions

5 x - 4 x^{2} + 3

x = 2

5 x + 4 x^{2} + 3

x = - 1

5 x - 4 x^{2} + 3

x = - 1

4 x^{2} - 5 x + 3

x = \frac{1}{2}

Find the value of the polynomial $5 x - 4 x^{2} + 3$ at
(i) $x = 0$
(ii) $x = - 1$
(iii) $x = 2$

Join BYJU'S Learning Program