Question

Instead of a square of four numbers, take a square of nine num bers and mark only the numbers at the four corners.

8

9

14

13

18

20

What is the difference of diagonal products? Explain using algebra.

19

(10)

15

Answer 1

Step-by-step explanation:

6 + 20) – (12 + 10) = 26 – 22 = 4 (ii) If we write the square of 9 numbers in the algebraic method Difference of angle to angle sum [yx + (y + 2)(x + 2)] – [y(x + 2) + (y + 2)x] [(yx + yx + 2x + 2y + 4) – ( yx + 2y + xy + 2x)] = 4Read more on Sarthaks.com - https://www.sarthaks.com/1392090/instead-numbers-take-square-nine-numbers-shown-previous-table-mark-numbers-four-corners?show=1392102#a1392102

Answer 2

Sorry,

The Question is not Clear.

Thank you.