जर α आणी β ही y² - 2y - 7 = 0 या वर्गासमीकरणाची मुळे असतील, तर
1) α²+β²
2) α³+β³
च्या कींमती काढा.
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can't understand your language
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1) (a+b)² - 2ab
(2)² - 2*-7
4+14.
18
2) (a+b) (a²+b²-ab)
(a+b) {(a+b)²-3ab}
2(4+3*7)
2*25
50
mark it as a brainliest answer
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