Factories 2a² - 35a - 18 then its value is equal to
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Given :-
➜ 2a² - 35a - 18
Solution :-
➜ 2a² - 35a - 18 = 0
➞ 2a² - (36 - 1)a - 18 = 0
➞ 2a² - 36a + a - 18 = 0
➞ 2a(a - 18) + 1(a - 18) = 0
➞ (a - 18) (2a + 1) = 0
➞ (a - 18) = 0
➞ a - 18 = 0
➞ a = 18
Either,
➞ (2a + 1) = 0
➞ 2a + 1 = 0
➞ 2a = - 1
➞ a = - 1/2
∴ The answer of this question is a = 18, - 1/2
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