Question

evaluate the following . 54^2-36^2​

Answer 1

Answer:

1620

Step-by-step explanation:

54^2=54*54=2916

36^2=36*36=1296

2916-1296=1620

Answer 2

Given:

54²-36²

To find:

Evaluated form of given equation

Solution:

$using \: \: identity \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ {x}^{2} - {y}^{2} = (x - y)(x + y) \\ \\{(54)}^{2} - {(36)}^{2} = (54 - 36)(54 + 36) \: \: \: \: \: \\ \\ = 18 \times 90 \\ \\ =1620 \: \: \: \: \:$