Question

Find the solution of the equations. show all work. (8GSE8.EE.7) a. 89=d2+ 25 B. 85-8m=69

Answer 1

a. d = ±8

b. m = 2

Explanation:

a. Subtract 25, then take the square root.

89 = d^2 +25

64 = d^2 subtract 25

±√64 = d = ±8 take the square root

b. Subtract 85, then divide by -8.

85 -8m = 69

-8m = -16 subtract 85

m = 2 divide by the coefficient of m

Answer 2

• a. d = ±8
• b. m = 2

Explanation:

a. Subtract 25, then take the square root.

... 89 = d^2 +25

... 64 = d^2 . . . . . . . . . subtract 25

... ±√64 = d = ±8 . . . . take the square root

b. Subtract 85, then divide by -8.

... 85 -8m = 69

... -8m = -16 . . . . subtract 85

... m = 2 . . . . . . . divide by the coefficient of m