Question

Find the value of the polynomial x² – 5x+6 at x=0

OR

Write the coefficient of y in the expansion of (5–y)²​

Answer 1

1) x²-5x+6

Taking the value of x = 0

= (0)²- 5×0 +6

= 0 - 0 + 6

= 6

2) (5-y)²

= (5)² - 2×5×y + (y)²

= 25 - 10y +y²

= y² - 10y +25

So the coefficient for y = -10