Question

2. Find the value of the polynomial p(y)=
${y}^{2}$
-5y + 6 at y = -2​

Answer 1

Answer:

Given,

p(y) = y² - 5y + 6

y = - 2

To Find :-

Value of the polynomial

Solution :-

Substituting value of 'y' in p(y)

y = - 2

p(y) = y² - 5y + 6

$\sf\implies$ p( - 2) = (-2)² - 5 (-2) + 6

p(-2) = (4) + 5(2) + 6

p(-2) = 4 + 10 + 6

p(-2) = 20

$\sf\therefore$ value of the polynomials p(y) = y² - 5y + 6 at y = - 2 is 20.