Answer:
(3x +4)²
Step-by-step explanation:
I think of a number x, then i multiply it by 3, add 4 and square the result.
Representing this mathematically,
x * 3= 3x
Then add 4 which will be 3x + 4
Squaring the result would be (3x +4)².
So, if we give our unknown which is x the value of say, 3.
Substituting the value of x into that equation would be easy.
(3 (3) +4)²
= (9 + 4)²
= (11)²
=132.