Question

use the formula (a+b) (a-b) = a square - b square : 33*27

Answer 1

33×27
=(30+3)(30-3)
=30^2-3^2
=900-9
=891

Answer 2

$\huge \color{red} \boxed{Answer:}$

Using identity :-

( a + b ) ( a - b ) = a² - b².

$\huge \bf = 33 \times 27.$

$\large \bf = (30 + 3)(30 - 3).$

$\large \bf = {(30)}^{2} - {(3)}^{2} .$

$\large \bf = 900 - 9.$

$\huge \boxed{ = 891.}$

✔✔ Hence, it is solved ✅✅.

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