Question

Divide p(x)=3x2+x+7by x+2.Find the remainder

Answer 1

Answer:

remainder =3

Step-by-step explanation:

given,

divisor = x+2 and dividend = 3x2+x+7

by remainder theorem.

x+2 =0

x= -2

putting x= -2

p(-2)= 3(-2)^2+(-2)+7

= 3×-2×-2-2+7

= 12-2+7

= 12-9

=3 ans.

Answer 2

p(x)=3x2+x+7

x + 2 = 0

x = -2 .... (i)

p(-2) = 3 (-2)^2 + (-2) + 7....(from equation(i))

= 3 (-2 × -2) - 2 + 7

= 3 (4) - 2 + 7

= 12 - 2 + 7

= 19 - 2

= 17 Answer.....