Steven180 Steven180

23-02-2016
Mathematics

contestada

what is 3k(-5k+21)+2(2.5k+90) <-- Confused please help

Relax

Respuesta :

apologiabiology apologiabiology

23-02-2016

use distributive prpoerty
a(b+c)=ab+ac

distribute each
3k(-5k+21)=-15k^2+63k

2(2.5k+90)=5k+180

so nowe we have
-15k^2+63k+5k+180
add like terms
-15k^2+68k+180
that is the answer

Answer Link

Otras preguntas

What is the difference between a fine focus and coarse focus knob?

For which value of x is undefined?

in 1783 spain owned what is now the state of

Which solid figure has six vertices? A: Rectangular Prism B: Square Pyramid C: Triangular Prism D: Hexagonal Pyramid

In which continent have the native people used the llama as much as people elsewhere have used the camel?

Can you solve this for me by: Factor out the GCF. Then continue to factor by using other methods.2a² -32

which project came first: Gemini, Space Shuttle, Mercury, Apollo?

A restaurant offers 12 types of entrees, 6 types of appetizers, and 4 types of rice.How many meals of appetizer, entree, and rice are there?

what 2 numbers should be placed in the blanks below so that the difference between consecutive numbers is the same? 17,_,_,41

log3/5 25/9=x-2 ? algebra 2