Question

104²-103²=
fill in the blanks​

Answer 1

Answer:

207

Step-by-step explanation:

it is in the form a^2-b^2

therefore,

a^2-b^2

=(a+b) (a-b)

=(104-103) (104+103)

=(1) (207)

=207

Answer 2

Answer:

1407

Step-by-step explanation:

(100+4)² - (100-3)²

so here on applying

(a+b)² = a²+ 2ab+b²

100² + 2*100*4 + 4²

10000 + 800 + 16

10816

AND

by (a-b)² = a² - 2ab+b²

100² - 2*100*3 + 3²

10000- 600 + 9

10009 -600

9409

now

10816- 9409 = 1407