Which equation would help find the measure of ∠M? x 52 78 = 180 52 x = 180 78 180 52 = 78 x 180 x = 78 52.
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The square of a binomial is written like
In your case, you have , which implies
So, we want to write
But our left hand side is
If we add 26 to both sides, we have