Question

lesson polynomials find the value of : p(m) = 5m² - 2m⁴ + 3m - 5 if m = -2​

Answer 1

Answer:

1

Step-by-step explanation:

put value of m=-2

5(-2)²-2(-2)⁴+3(-2)-5

5(-4)-2(-16)+3(-2)-5

-20+32-6-5

-20+32-11

-20-11+32

-31+32=1

Answer 2

Given expression:

$p(m)=5m^{2}-2m^{4} +3m-5$ and the value of 'm' is $-2$.

Let us find the value of polynomial expression by substituting the value of 'm'.

$=5(-2^{2} )-2(-2^{4} )+3(-2)-5$

$=5(-2\times-2)-2(-2\times-2\times-2\times-2)+(-6)-5$

$=5(4)-2(16)-6-5$

$=20-32-11$

$=20-43$

$=-23$.

Hence, the value of $p(m)$ is $-23$.