Chrissii
Chrissii Chrissii
  • 03-09-2020
  • Mathematics
contestada

Expand (2x-5y)⁷ and find fourth form​

Respuesta :

ChoiSungHyun
ChoiSungHyun ChoiSungHyun
  • 03-09-2020

Step-by-step explanation:

By binomial theorem,

T(r+1) = nCr * a^(r+1) * b^r

Term 4 = 7C3 * (2x)^4 * (-5y)^3 = 35 * (16x^4) * (-125y^3) = -70000x^4y^3.

Answer Link

Otras preguntas

Impairment in decision making is a result of the _____ being compromised
Which element can expand its valence shell to accommodate more than eight electrons?
How are cardiac muscle, smooth muscle, skeletal muscle alike?
Which of the following is one way a corporation can raise money? by selling stock on the stock market by demanding money from the government for research and de
What equation is described below? 45 is 9 times as many as 5 Possible Answers: 45×9=5 5×9=45 5+9=45 45×5=9 45÷9=5
How many solutions does 9z-6+7z=16z-6
The main purpose of political parties is to get their members elected. True False
what is the decimal multiplier to decrease by 68%?
When they were young, Byron and Zachariah were both raised by a father who had serious struggles with alcoholism. Twenty years later, Byron has a serious alcoho
An art collector had 6 paintings and the bought a new painting for $100,000. How will buying the new painting affect the Mean and the Median?