Question

hello guyz plz answer the questions fastly!!!​

Answer 1

Answer:

By using remainder theorem,

i)8x²+5x+1

x-10=0

so, x=10

=8(10²)+5(10)+1

=800+50+1

=851 ⇒ ANSWER

ii)x²+7x-11

=3x=2

so x=2/3

=x²+7x-11

=(2/3)²+7(2/3)-11

=4/9+14/3-11

=(4+42-99)/9

=-53/9 ⇒ ANSWER

Answer 2

$3)8 {x}^{2} + 5x + 1 \\ \\ x - 10 = 0 \\ \\ x = 10 \\ \\ = 800 + 51 \\ = 851$