Math, asked by sejal5157, 8 months ago

write discriminant of following quadratic equation 9 x square + 7 x minus 2 equals to zero
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Answers

Answered by karthi77777
5

Answer:

D=11

Step-by-step explanation:

D=√b^2-4ac

9x^2+7x-2=0 (given)

a=9

b=7

c= -2

D=√(7)^2-4(9)(-2)

D=√49-4(-18)

D=√49+72

D=√121

D=11

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