emilynoelrose emilynoelrose

25-07-2017
Mathematics

contestada

What is the fifth term in the expansion of (3x - 3y)7?
__ x3y4

Respuesta :

Аноним Аноним

25-07-2017

(r+1)th term of (a +x)^n = nCr a^(n-r)x^r

so 5th term of (3x - 3y)^7 = 7C4 * (3x)^(7-4) (-3y)^4 (NOTE r = 4)

= 35 * 27x^3 * 81y^4

= 76545 x^4y^3

Answer Link

faithallums13 faithallums13

24-01-2021

Answer:

76545

Step-by-step explanation:

got it write on edge :)

Answer Link

Otras preguntas

how to undo the operation and explain why it works a. adding 28 b. dividing by 17

Why do the oceans play such a large part in the water cycle

How do I solve this problem 7x<14 and 1-x<4

What is the initials for sodium chloride

the school marching band has 36 members. the band director wants to arrange the band members into a square formation. how many band members should be in each ro

How did Islam and the beliefs of indigenous societies fuse among African people?

should the object be measured in grams or in kilograms? a feather a bulldog a television a penny

If you were president in 1796, what three steps would you take to protect the United States from its more powerful neighbors?

What modern day country is located where Mesopotamia was located

which expression stands for 32 more than a number d