Question

find the value of the polynomial 4x2-5x+3 at X = 1/2​

Answer 1

$Let \: p(x) = 4x^{2} - 5x + 3$

$If \: x = \frac{1}{2} \:then \: the \: value \: of$

$the \: polynomial \: p(\frac{1}{2})$

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

$= 4 \times \frac{1}{4} - \frac{5}{2} + 3$

$=1 - \frac{5}{2} + 3$

$= 4 - \frac{5}{2}$

$= \frac{8-5}{2}$

$= \frac{3}{2}$

Therefore.,

$\red{ The \: value \: the \: polynomial } \green { = \frac{3}{2}}$

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