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1 Answer
May 16, 2018

x=7

Explanation:

.

x^2-14x+49=0

You can solve this either by factoring or using the quadratic formula.

This quadratic is factorable. We need to think of two number such that:

If you multiply them together we will get 49

And if we add them together algebraically we will get -14.

The numbers are -7 and -7. Therefore,

(x-7)(x-7)=0

x-7=0

x=7