1.

P(x)=5x-π;x=-3÷2 verify whether the value s of x given in each case are the zeroes of the polynomial or not ?

Answer»

Hi,

solution:
➖➖➖
To FIND that given value of X is root or zero of

polynomial or not,we MUST put that value in

polynomial,if it becomes zero,then given value

of x is root of polynomial.

x = \frac{ - 3}{2} \\ now \: put \\ <klux>P</klux>(x) = 5x - \pi \\ p( \frac{ - 3}{2} ) = 0 \\ = 5( - \frac{3}{2} ) - \pi \\ = - \frac{15}{2} - \pi \\ = \frac{ - 15 - 2\pi}{2} \: \: is \: \: not \: equal \: to \: zero. \\ \\
so,
x = \frac{ - 3}{2}
is not a zero of p(x).

hope it helps you.


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