Algebraic Formulae | Class 7 | Practice Set 50

Algebraic Formulae | Class 7 | Practice Set 50

Algebraic Formulae Class 7 Practice Set 50, all the examples of this practice set are solved in the pdf file attached in this post.

Practice-set-50

All the examples of this practice set are solved using the formulae given below.

(a + b ) ^2 = a^2 + 2ab + b^2

(a – b ) ^2 = a^2 – 2ab + b^2

In these types of examples we should first find the values of ‘a’ and ‘b’ and then we should expand the given expression as per the above mentioned formulae.

Also read : Pythagoras theorem Class 7 | Practice Set 49

After expansion we should solve the expansion appropriately by doing the required mathematical calculations.

In the second question of this practice set we are asked to find the square of any random number. We should convert that number in the format of the above mentioned formulae and then we should expand them appropriately.

The solution of the second question is also found out by doing simple mathematical calculations.

The only thing you require for solving these types of examples is that we should know the formulae by heart and we should be able to do the simple mathematical calculations.

Also read : Pythagoras theorem Class 7 | Practice Set 48

The pdf file embedded here might take some time to load in that case please be patient and after 1-2 seconds the file should load automatically.

If the pdf file fails to open then try zooming the file upto 110% and then all the pages should load.

By going through the solutions provided in this pdf file we can easily learn about these types of examples and the methods used to solve them. Try to solve these examples by yourself and if you encounter any problems then you can refer the solutions given above.