Answer:
first option is correct
Step-by-step explanation:
hope this helps
F(x)= (x+1) (x+12) or A
( x + 1 ) ( x + 12 )
x^2 + 1x + 12x + 12
x^2 + 13x + 12
wait im a little confused sorry but im going to try my best
50x2=100. 5×2=10. 500x2=1,000
1,000÷10=100. 100÷10=10. 10,000÷10=1,000
126
42 times 3 = 126