what is hit and trial method please explain me
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Formula=ax2+bx+c=0.
Suppose an equation be 6x2+5x-4=0.
To solve this you must simply compare this equation with the formula in this way,
ax2+bx+c=0
6x2+5x-4=0
Now let x be the root of the equation So, it will be given by –
x=(-b±v(b^2-4ac))/2a; this formula is also called quadratic formula
Here b =5,a=6,c=-4.
NOTE : v(b^2-4ac)¦ is discriminent or D.
If D>0, then roots are real and unequel
If D=0, then roots are real and equal
If D <0, then roots are not real
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Suppose an equation be 6x2+5x-4=0.
To solve this you must simply compare this equation with the formula in this way,
ax2+bx+c=0
6x2+5x-4=0
Now let x be the root of the equation So, it will be given by –
x=(-b±v(b^2-4ac))/2a; this formula is also called quadratic formula
Here b =5,a=6,c=-4.
NOTE : v(b^2-4ac)¦ is discriminent or D.
If D>0, then roots are real and unequel
If D=0, then roots are real and equal
If D <0, then roots are not real
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gopalbhagat3p7s8ho:
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