Question

45^2+153.3^2-24.3

Answer 1

`45^2 + 153 . 3^2 - 24.3`

`= 2025 + 153 . 9 - 72`

`= 2025 + 1377 - 72`

`= 3402 - 72`

`= 3330`

Answer 2

45² +153 . 3² - 24.3

=2025+153. 9 - 24.3

=2025+1377-72

=3402-72

=3330

Answer 3

\(=\left(15.3\right)^2+153.3^2-8.3.3=15^2.3^2+153.3^2-8.3^2\\ =\left(15^2+153-8\right).3^2=\left(225+153-8\right).3^2\\ =370.9=3330\)