reemchan reemchan

24-12-2021
Mathematics

contestada

Expand using identities:
(i) (2x- 5y)²
(ii) (11a + 2) (11a – 2)
(iii) (7m + 3) (7m + 3)

Respuesta :

Yang100 Yang100

25-12-2021

Answer:

Step-by-step explanation:

(2x-5y)^2

(2x-5y)(2x-5y)

4x^2-10xy-10xy+25y^2

4x^2-20xy+25y^2

------------------------------

(11a+2)(11a-2)

121a^2+22a-22a-4

121a^2-4

------------------------------

(7m+3)(7m+3)

49m^2+21m+21m+9

49m^2+42m+9

Answer Link

Otras preguntas

Who was the first ruler of the Tang Dynasty?

Match each character from franz kafka's the metamorphosis to the trait that best describes that character.

why was voltaires novel candide banned in europ and the united states

What does Uds mean in spanish And what is the answer to this: Yo: Que ____ Uds? Persona : helados y pastel A.trea B.Le traigo C.postres y helados D.postr

in the poem heaven what things does echo say will last?

Romantic artists and poets admired the middle ages because they represented a time _____.

an island arc complex is formed where

Which of the following is a true statement about the countries highlighted on the map? A. They are the greatest supporters of international efforts to develop r

A rock is dropped from the top of a building. As it falls, it is getting faster and faster. Which of the following is true about the rocks kinetic energy? a.) I

Which kind of map would be used to show population density in the countries of the world? a political map a physical map a resources map a special purpose map