Solve for b. b² = 49 b = positive seven or negative seven

To solve for ( b ) in the equation ( b^2 = 49 ), you need to take the square root of both sides.

1. Start with the equation:

[

b^2 = 49

]
2. Take the square root of both sides:

[

b = pm sqrt{49}

]
3. Since the square root of 49 is 7, you get:

[

b = 7 quad text{or} quad b = -7

]

So, the solutions are ( b = 7 ) or ( b = -7 ).