1.

Factorise x^2-4x-50 ​

Answer»

Answer:

hey!

{x}^{2} - 4x - 50

= Add 50 to both side of the equation :

x2-4x = 50

Now the clever bit: TAKE the coefficient of x , which is 4 , divide by two, giving 2 , and FINALLY SQUARE it giving 4

Add 4 to both sides of the equation :

On the right hand side we have :

50 + 4 or, (50/1)+(4/1)

The common DENOMINATOR of the two fractions is 1 Adding (50/1)+(4/1) gives 54/1

So adding to both sides we finally get :

x2-4x+4 = 54

hope it will be helpful ✌️


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