If x = 4 then -22√x +2=?

A    -14

B    -8

C    -2

D    0

Solution

Correct Answer: Option A

 

-22√x +2

=> -22√4 +2

=> -22*2 +2

=> -24 +2

=> -16 + 2 [Notice that the –ve symbol before( 22√x ) is not inclusive with the number  by brackets, thus it won’t count when square rooting ]

=> -14

 

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions