Two possible solutions of √11-2x=√x^2+4x+4 are –7 and 1. which statement is true? a) only x = –7 is an extraneous solution.
b) only x = 1 is an extraneous solution.
c) both solutions are extraneous.
d)neither solution is extraneous.

Option D)Neither solution is extraneous.

Step-by-step explanation:

we have

we know that

two possible solutions are x=-7 and x=1

Verify each solution

Substitute each value of x in the expression above and interpret the results

1) For x=-7

----> is true

therefore

x=-7 is not a an extraneous solution

2) For x=1

----> is true

therefore

x=1 is not a an extraneous solution

therefore

Neither solution is extraneous

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13