Math, asked by mahfoozfarhan4, 1 year ago

if the roots of the equation 5x²+mx+5=0 , are real and equal, find the value of "m" ?

Answers

Answered by lalitha2004

the value of m is 10....

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mahfoozfarhan4: thx a lot

mahfoozfarhan4: what if its not real and equal?

utkarsh2209: then b²-4ac<0

utkarsh2209: b²-4ac < 0

utkarsh2209: i think it's not showing greater than sign

mahfoozfarhan4: sorry i didnt get u

mahfoozfarhan4: okay

utkarsh2209: i mean if roots are not real or equal than b²-4ac would be smaller than 0 hence its value would be negative

mahfoozfarhan4: ooohk

Answered by utkarsh2209

If roots of p(X)=5x²+mx+5=0 are equal then.

b²-4ac=0

here; a=5; b=m; c=5

hence; m²-4(5)(5)=0

m²-100=0

m²=100

m=√100

thus; m=10 ANS:

mahfoozfarhan4: thx a lot

utkarsh2209: Welcome!

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