The diagram below represents the first three terms of a sequence. assuming the pattern continues, which formula determines an, the number of squares in the nth term ?

The correct answer is B)

Writing the sequence numerically, we have 4, 7, 10, ...

This is an arithmetic sequence, since there is a constant, 3, added each time.  This gives us the explicit formula


Using the distributive property, we have


Combining like terms, we have

Find 2 numbers multiply those 2 numbers the answer will be -30 but if add them together will get 7so 10 and -3 are the two numbers10(-3) = -3010+(-3) = 7(x-3)(x+10) hope this !