Math, asked by tanisha494, 10 months ago

one of the zeroes of the polynomial
$2x {}^{2} + 9x - 5$
a)2. b)-2
c)1/2. d)-1/2

Answers

Answered by Brâiñlynêha

16

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$\sf 2x{}^{2}+9x-5 \\2x{}^{2}+(10-1)x-5 \\2x{}^{2}+10x-x-5 \\ 2x(x+5)-1(x+5) \\ (x+5)(2x-1)\\ zero's = x+5=0 \\ x=(-5) \\ 2x-1=0 \\ 2x=1 \\ x=1/2$

option C✅✅ (1/2)

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