Question

solve 2 part of the photo​

Answer 1

Answer:

the answer of this question is present in the following picture

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Answer 2

Step-by-step explanation:

alpha + beta = -b/a

alpha * beta = c/a

(i) (alpha - beta) = √(-b/a)² - 4(c/a)

= √(b²/a²) - (4c/a)

= √(b²-4ac)/ a

where b² - 4ac = D

(alpha - beta) = √D/ a

(ii) alpha² + beta² = (alpha+beta)² - 2alpha*beta

alpha² + beta² = (b²/a²) - 2c/a

= √(b²-2ac)/a²

= √(b²-2ac) / a