Question

(x+6)^2= (7)^2 + (b)^2​

Answer 1

Answer:

b=√x2+12x−13 or b=−√x2+12x−13

Step-by-step explanation:

(x+6)2=72+b2

Step 1: Flip the equation.

b2+49=x2+12x+36

Step 2: Add -49 to both sides.

b2+49+−49=x2+12x+36+−49

b2=x2+12x−13

Step 3: Take square root.

b=√x2+12x−13 or b=−√x2+12x−13