Math, asked by iamVedika, 9 months ago

if x=-2 is a root of the equation x² -3x - a =0, then find the value of a.

Answers

Answered by SaHaBji07

1

Answer:

the value of a is 10......

put x=-2

Answered by hani8237

1

Answer:

(-2)^2-3×-2 -a=0

4+6=a

10 = a

therefore the value of a =10

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| एक नाव धारा की दिशा में एक घाट से दूसरे घाट तक जाने में 9 घंटे लगाती है। धारा। की विपरीत दिशा में यही दूरी 10 घंटे में पूरा करती है। यदि धारा की चाल 1 किमी/प्रति | घंटा हो तो शांत जल में नाव की चाल एवं दोनों घाटों के बीच की दूरी ज्ञात कीजिए। ...