Question

plzz answer it fastly​

Answer 1

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I have attached above the solution

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Answer 2

Step-by-step explanation:

k[x²-(alpha+beta)x+ (alpha)(beta)

k[x²-3x+(-2/5)]

k[x²-3x-2/5]

k[5x²-15x-2/5]

for k= 5

5[5x²-15x-2/5]

5x²-15x-2