-18x
you first times the numbers, which becomes -18
Next you add the exponent from the veriables (x) (if you're diving you're subtractiong example: x^a/x^b = x^a-b)
Sooo when you add them you get 8-7=1 which means.. x^1 (but you don't need to put the 1)
Answer: Select the first one
Step-by-step explanation:
-6 multiplied 3 is -18
AND they both have power x which means -6x⁸ multiply 3x ⁻⁷
= -18 x⁸ ⁺⁽⁻⁷ ⁾(As the have same variable )
= -18 x⁸⁻⁷
=-18 x
