Question

Find the remainder when 2x power 2 +5x+7 is divided by (x-1)

Answer 1

Answer:

Make x+1, zero of the polynomial, therefore x = -1

R1 = -1+2a+5-7

R1 = -3+2a

Now, make x-2 a zero of the polynomial, therefore x=2

R2 = -12+6a

therefore, R1+R2= 6 , (took 2 common)

substitte the values

-3+2a+6a-12=6

8a=21

a=21/8

Step-by-step explanation:

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