Mathematics, 02.07.2019 10:30 dpchill5232
Asap 1) prove that the equation 7x^(2)+bx−23=0 for any value of b has one positive and one negative root. 2) prove that the equation 12x^(2)+70x+a2+1=0 for any value of a does not have any positive roots. 3) prove that for any natural n the value of the expression (4n+5)^(2)–9 is divisible by 4.
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Asap 1) prove that the equation 7x^(2)+bx−23=0 for any value of b has one positive and one negative...
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