Question

2/5 is a zero of the polynomial f(x)=2-5x verify

Answer 1

Answer:

number is said to be zero polynomial if after putting the value in the equation ,the value of equation gets zero

So

f(x)= 2-5x

putting value of x as 2/5

So

f(x). $2 - 5 \times 2 \div 5 \\ \\ = 2 - 2 = 0$

Verified.....

yes 2 / 5 is the zero of the polynomial

Answer 2

$f(x) = 2 - 5x \\ f( \frac{2}{5} ) = 2 - 5 \times \frac{2}{5} \\ f (\frac{2}{5}) = 2 - 2 = 0$

HENCE RHS =0

$so \: \frac{2}{5} is \: a \: zero \: of \: f(x) = 2 - 5x$

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