makhananagirlie makhananagirlie

20-06-2021
Mathematics

contestada

A square has sides of length (2 a-b) metres. Write down an expression for the area of the square and simplify it

Respuesta :

jimrgrant1 jimrgrant1

20-06-2021

Answer:

A = 4a² - 4ab + b²

Step-by-step explanation:

The area (A) of a square is calculated as

A = s² ( s is the side length ) , so

A = (2a - b)² ← expand using FOIL

= (2a)² - 2ab - 2ab + (- b)²

= 4a² - 4ab + b²

Answer Link

Otras preguntas

12×100/2= what is the answer?

Write 42% as a fraction

why do you think thy e Vikings did not try to colonize the americas

How is a hemisphere different from a sphere?

if the teacher begins recording on a digital camera with an hour available, is there enough time to records everyone if she gives 15 minutes introduction at the

'A traditional economy is characterized by the supply of goods in which two people trade their possessions with each other. This is also known as _____.'

13 143 as a unit fraction

work out the area of a triangle base 6cm height 8cm

what is the sum or difference of 5/7 - 1/3

Every year _______ species go extinct. a. 3 b. 72 c. 1000 d. 20000