Solve each of the following equations using the Extended Square Root Property

Question

Solve each of the following equations using the Extended Square Root Property.

1. 8√x+7 = 16

x= _____________

2. √7x+4 −3 = 0

x= _____________

3. 8√5x−7 = 16

x= _____________

Answer 1

8sqrx +7 = 16

8sqrx = 9

sqrx = 9/8

x = 81/64

unless you meant

8sqr(x+7)= 16

then

sqr(x+7) = 16/8 =2

x+7=4

x =-3