Chrissii Chrissii

03-09-2020
Mathematics

contestada

Expand (2x-5y)⁷ and find fourth form

Respuesta :

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

What is the speed of an object that moves 100 km in 45 minutes?

NEED HELP!!!!!!!!!!!!!!! Which factorizations can be used to identify the real zeros of the function f(x)=-20x^2+23x-6 ? A. (-10x+2)(2x+3) B. -(10x+2)(2x-3) C.

Best comparison of two poems "the taxi" and "where have you gone"

Odysseus's entering his own palace as a beggar is an example of ______________. What is the best answer? dramatic irony irony verbal irony foil

Why is the opening of the alchemist important

Which sentence shows the correct use of a common homophone? I would like to come along with everyone, too. After school, you need to go two the library. We shou

Find the volume of the cylinder to the nearest tenth use 3.14

The most common listening problem is

If a squared + b -c÷m, if a=6 ,b = 8, c=5 and m =3

How do variables help you model real-world situations? Give an example of a model that uses variables and explain how it helps people make predictions.