solve. the square root of d^2-11=5

A. 4,-4
B. 5,-5
C. 5,6
D. 6,-6

1 answer

To solve for d, first isolate d^2 on one side:

√(d^2 - 11) = 5
d^2 - 11 = 25
d^2 = 36
d = ±6

Therefore, the correct answer is option D: 6, -6.