Answer: B
the blocks add up to 26
Please write that as 4.321 × 10^(−4). The " ^ " indicates exponentiation and the parentheses help make clear that your exponent here is a negative one.
Rewrite 4.321 × 10^(−4) by moving the decimal point 4 places to the left:
0.0004321
The answer is -6. because 12,10,8,6,4,2,0,-2,-4,-6.
The coefficient of the second term is 18.
What you do is you FOIL the terms: