Question

If f(x)= (3x+7)^2, then f(1) = ?

Answer 1

Subsitute 1 forx
f(1)=(3(1)+7)^2
f(1)=(3+7)^2
f(1)=10^2
f(1)=100

Answer 2

To find f(1), substitute 1 for x.

f(1) = (3(1)+7)²
f(1) = (3+7)²
f(1) = 10²
f(1) = 100