Question

Please answer my question! 15n^2-8n-8=10n^2

I need this answer please!

Answer 1

Answer:

15n^2-10n^2-8n-8=0

5n^2-8n-8=0

Comparing with standard equation of quadratic equation

a=5,b=-8,c=-8

D=b^2-4ac

=(-8)^2-4*5*(-8)

=64+160

224

Now,

X={(-b)+-√D}/2a

=(8+-√224)/10

By taking (+)sign , (8+√224)/10

" " (-) sign,(8+√244)/10