Question

Solve for d. (Question in answers)
A. 4, –4
B. 5, –5
C. 5, 6
D. 6, –6

Answer 1

\[\sqrt{D ^{2} -11} = 5\]

Answer 2

@Mertsj :)

Answer 3

Square both sides.

Answer 4

What do you get?

Answer 5

\[\sqrt{D - 11}^{2} = 5^{?}\]

Answer 6

\[(\sqrt{d^2-11})^2=5^2\]

Answer 7

Can you simplify that?

Answer 8

becuase we multi ply d by d, then find the sqrrt isnt it just D?

Answer 9

5x5 25