Economy, asked by sadhanamallik, 1 year ago

which one is the correct solution for x in the quadratic equation
2x²+8x=10?
a)1 and 5
b)5 and 3
c)2 and 7
d)1 and -5


ridhi322: hey how is degree typed
ridhi322: ans is d
ridhi322: because roots are two
ridhi322: and definetly one of them is positive n other is negative
ridhi322: ans is b
ridhi322: shall i explain

Answers

Answered by gmamadhumita3
0
HEYA......✋✋✋✋✋

HERE IS YOUR ANSWER.............

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SOLVING THE EQUATION:
2x^2+8x=10
2x^2+8x-10
2x^2+10x-2x-10
2x(x+5)-2(x+5)=0
(x+5)(2x-2)=0
x+5=0 and 2x-2=0
x=0-5 and 2x=0+2
x=-5 and 2x=2
x= -5 and x=1

Hence the answer to the given option is option (d)

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HOPE MY ANSWER WOULD HELP YOU

REGARD MADHU@
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