Question

Find the remainder (without division) on dividing f(x) by (x-2) where I) f (x) = 5x² -7x+4 I) f (x) = 2x³ -7x³+3

Answer 1

Step-by-step explanation:

by remainder theorem, when f (x) is divided by x-2 then the remainder is f (2) .

f (x)=5x^2-7x+4

f(2)=5 (2)^2-7 (2)+4

20-14+4

20-10

10

f(x)=2x^3-7x^3+3

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

16-56+3

-37

Answer 2

Answer:

1)

Step-by-step explanation:

f(x) =5x²-7x+4

(x-2)

x-2=0

x=2

f(2)=5(2)²-7(2)+4

=(5+2²)-14+4

=(5×4)-14+4

=20-14+4

=24-14

=10

2)f(x)=2x³-7x³+3

f(2) =2(2)³-7(2)³+3

=16-28+3

=19-28

=-9