You can use F.O.I.L. for this, which if you don't know stands for first outer inner last, so multiply the first in each parentheses, then the outer, then the inner, then the last. yours would be 3*5+3*√7+(-√7)*5+(-√7)*√7 => 15+3√7-5√7-7 => 8-2√7
Final answer:
8-2√7
Hope I could help :)
2 for $4 because if you take the dollar amount and divide it by the amount of packs you will get the lowest number.
Answer:
5
Step-by-step explanation:
First, you can take out -5 and -6 because when dividing a negative by another negative, the quotient will be positive. And 30/6 is equal to 5
