1.

(x+6)^2= (7)^2 + (b)^2​

Answer»

b=√x2+12x−13 or b=−√x2+12x−13Step-by-step explanation:(x+6)2=72+b2Step 1: FLIP the equation.b2+49=x2+12x+36Step 2: Add -49 to both sides.b2+49+−49=x2+12x+36+−49b2=x2+12x−13Step 3: Take square root.b=√x2+12x−13 or b=−√x2+12x−13



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