Well Those are variables and it is using the Distributive property to solve. For example P(a+b) simplify P*a + P*b.
Answer:
-2497
Step-by-step explanation:
Sn=n/2[2a+(n-1)d]
=22/2[2*-40+(22-1)d]
=11(2*-40+(21*-7)
= -2497
Ok so if I understand this correctly then you have to find out what each one of them are then add them to get the total number of both of them. So this is the equation I did. The one circled on blue is the formula I made for the equation and then the green one is the answer. which is 5 4/9
I hope this helps.
Answer:
f(x)=(x-6)(x-(-7))
Step-by-step explanation:
Foiled:
0 = x + x - 42