Question

Verify if 1/2 and -3/2 are zeros of polynomial 8x3-4x2-18x+9.if yes then factorise polynomial

Answer 1

Answer:

8x3-4x2-18x+9

if 1/2 and -3/2 are zeros of polynomial 8x3-4x2-18x+9 then satisfy the equation

8(1/2)^3-4(1/2)^2-18(1/2)+9

8*(1/8)-4*(1/4)-9+9

1-1+0

0

hence 1/2 is a root of equation 8x3-4x2-18x+9

similarly if -3/2 are zeroof polynomial 8x3-4x2-18x+9 then satisfy the equation

8(-3/2)^3-4(-3/2)^2-18(-3/2)+9

8*(-27/8)-4*(9/4)-18(-3/2)+9

-27-9+27+9

0

hence -3/2 is also a root of equation 8x3-4x2-18x+9.

Answer 2

Answer:

Step-by-step explanation:

Just same as the answer above given

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