Question

find L.c.m. of the expressions x cubic -8x cubic +2x square -8x where x cubic +2x square -8x =x (x+4) (x-2)

Wrong answer will reported it​

Answer 1

ANSWER:2√2

STEP BY STEP EXPLANATION:

x cubic -8x cubic +2x square -8x =0

x cubic +2x square -8x -8x cubic =0

x(x+4)(x-2) -8x cubic=0 (because it is given that x cubic +2x square -8x =x (x+4) (x-2)

x(x+4) (x-2) =8x cubic

(x+4) (x-2) =8x cubic/x

(x+4) (x-2) =8x square

(x+4) (x-2)/8 =x square

√(x+4) (x-2) /√8=x

so,

√(x+4) (x-2) /2√2=x

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