Question

If r,s are the roots of x²-7x-12=0 , the sum of sum and product of the roots is ___​

Answer 1

0 is the answer

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Answer 2

Step-by-step explanation:

Firstly we have to find its root

x^2 - 7x - 12 =0

x^2 - 4x - 3x - 12 = 0

x(x-4) - 3(x-4) = 0

(x-4)(x-3) =0

x-4 = 0, x-3=0

x=4, x=3

So, r=4 and s= 3

Now sum of roots

r+s = 4+3 = 7

And product of roots

r*s = 4*3 = 12