Question

please answer the question fast plz​

Answer 1

Step-by-step explanation:

First of all do all the number by its nearest 100...here I solve a question for you........

(v). 395

we can write 395 as (400-5)

so by the formula (a+b)^2=a^2+b^2+2ab we get

(400-5)^2=(400)^2+(5)^2-2(400)(5)

=160000+25-4000

=160025-4000

=156025

Answer 2

Answer:

i.) (199)^2

=(200-1)^2

= 200^2 + 1^2 - 2(200 )(1)

=40000 + 1  -400

= 39601

ii.) 103^2

=(100 + 3) ^2

= 100^2 + 3^2 + 2(3)(100)

= 10000 + 9 +600

= 10609

iii.) 91^2

(100 - 9)^2

100^2 + 9^2 + -2(100)(9)

= 10000 +81 - 1800

= 8281

vi.) 202^2

= (200 + 2)^2

200^ 2+ 2^2 + 2(2)(200)

40000 + 4 + 800

= 40804

v.) 395

= (400 - 5) ^2

= 400^2 + 5^2 - 2(400)(5)

= 16000 + 25 + 4000

= 12025

vi.) 998

= (1000 - 2)^2

= 1000^2 + 2^2 - 2(2)(1000)

= 1000000 + 4 - 4000

= 996000  + 4

= 996004

Step-by-step explanation: