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OpenStudy (this):
-2x^2+8x-8=0
a, 0;two real solution
b, 128; two real solution
c,0; 2 imaginary solution
d,0;one real solution
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Parth (parthkohli):
Hint: you could start by dividing both sides by -2.
jhonyy9 (jhonyy9):
divide both sides by -2 and will get , ... ???
can you make it sure ...!
jhonyy9 (jhonyy9):
are you here ?
OpenStudy (this):
yes
jhonyy9 (jhonyy9):
so than can you divide it ?
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OpenStudy (this):
yes
jhonyy9 (jhonyy9):
and will get ---- ?
OpenStudy (this):
i don't if it is right or not but i got -8x-4=0
OpenStudy (anonymous):
on simplifying you get -x^2+4x-4=0
-x^2+2x+2x_4=0
now factorize:
(-x+2)(-x+2)=0
jhonyy9 (jhonyy9):
so if you divide both sides by (-2) so than will result
-2x^2 +8x -8 =0 /(-2)
x^2 -4x +4=0
right ?
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jhonyy9 (jhonyy9):
so what factorized will be eaxctly (x-2)^2
(x-2) squared
right ?
jhonyy9 (jhonyy9):
so than x-2=0
x=2
than will be right d. so one real solution
hope so much that is understandably sure right
i wait your message
bye
OpenStudy (anonymous):
yes
jhonyy9 (jhonyy9):
yes @akkib89 there you have missed anything
ok ?
OpenStudy (anonymous):
actually it will be mod(x-2)=0
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OpenStudy (anonymous):
-2x^2+8x-8=0
x^2 -4x +4 = 0
b^2-4ac
16 - 16 = 0
So..They have two equal Roots.....So..it means that....One SolN
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