what do you mean by the given equation has real and equal roots according to chapter 4 quadratic equations of class 10th NCERT
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Suppose we took a example
x²+5x+6=0 then for finding out the roots we do
x²+5x+6=0
x²+3x+2x+6=0
=x(x+3)+2(x+3)=0
x+2=0 x+3=0
x=-2. x=-3
Here -2,-3 are real numbers actually real numbers means the numbers which we know the value. I hope u know very well about complex numbers “i” is called complex numbers
Same roots means suppose when we do factorisation for a quadratic equation we got the roots are 2,4 these are not equal roots. If we factorise if we get 2,2 we can call it as equal roots.
I hope this explanation is enough
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