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Start learning 50% faster. Sign in nowI. 9x2+ 45x + 26 = 0 => 9x2+ 39x + 6x + 26 = 0 => 3x(3x + 13) + 2(3x + 13) = 0 => (3x + 2) (3x + 13) = 0 => x = -2/3, -13/3 II. 7y2– 59y − 36 = 0 => 7y2– 63y + 4y − 36 = 0 => 7y(y – 9) + 4(y - 9) = 0 => (7y + 4) (y – 9) = 0 => y = -4/7, 9 Hence, x < y. Alternate Method: if signs of quadratic equation is +ve and +ve respectively then the roots of equation will be -ve and -ve. So, roots of first equation = x = -2/3, -13/3 if signs of quadratic equation is - ve and -ve respectively then the roots of equation will be +ve and -ve. (note: +ve sign will come in larger root) So, roots of second equation = y = -4/7, 9 After comparing we can conclude that x < y.
Refer to the given number, symbol series and answer the question that follows.
(Left) 3* @ 5% 3 + = 3 3% 8 7 & 5 $ 7 5 & # * 8 2 @ 5 (Right)
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Rearrange the following jumbled sentences to make a meaningful one:
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Q: they look for creative
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Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series.
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Which two signs should be interchanged to make the following equation correct?
14 × 5 – 56 ÷ 7 + 35 = 43
