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given that the equation kx^2 + 12x + k = 0, where k is a positive constant, has equal roots, find the value of k
the answer to the question is on this link, K is 6, and X is -1, you have to use this equation in future:
Not sure if this is the right method as i kind of experimented with numbers and found that 6 worked. Because it had equal roots, I knew that when you factorise it, the brackets must be the same.
6x^2 + 12x + 6
Hope this helps and makes a bit of sense!
wud i need 2 sketch a graph??
no you wouldn't unless it specified or asked you to solve it graphically, you might want to ask your teacher on that one.