Find the value of the polynomial at points.

Find the value of polynomial 5x–8x^2+3 at the points

(i) x=–5

(ii)x=0

Solutions

Expert Solution

Solution:

The given polynomial is,

5x–8x^2+3 .... (A)

(i)To find the value at point x=–5

On substituting x=–5 in the polynomial given by (A) we get,

=5(–5)–8(–5)^2+3

=–25–8(25)+3

=–25–200+3

=–225+3

=–222

(ii) Similarly, we can find the value of polynomial (A) at point x=0.

Substitute x=0 in the polynomial given by (A),

we have,

=5(0)–8(0)^2+3

=0–0+3

The value of polynomial 5x–8x^2+3 at

(i) x=–5 is –222.

(ii) x= 0 is 3.

Cheryl answered 1 year ago

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