Question

Using the formula
(a+b) 2= (a) 2+(b)2+2ab
calculate (603)2​

Answer 1

Given (630)

2

We have (a+b)

2

=(a

2

+2ab+b

2

)

(630)

2

can be written as 600+30

So here a=600 and b=30

Using the formula,

(600+30)

2

=(600

2

+2×600×30+30

2

)

On simplifying we get

(600+30)

2

=(360000+36000+900)

(630)

2

=396900

Answer 2

Answer:

363609

Step-by-step explanation:

(600+3)^2=(600)^2 +(3)^2 + 2*600*3

= 360000 + 9 + 3600

= 360009+ 3600

= 363609.