Using suitable identities, evaluate the following:

$(729)^{2} - (271)^{2}$

Open in App

Solution

We have,
$(729)^{2} - (271)^{2} = (729 + 271) (729 - 271) = 1000 \times 458$
$= 458000$ [using the identity, $a^{2} - b^{2} = (a + b) (a - b)$ ]

Suggest Corrections

Similar questions

Question 86 (xxi)

Using suitable identities, evaluate the following:

$(729)^{2} - (271)^{2}$

Using suitable identities, evaluate the following:

$(103)^{2}$

Question 86 (viii)

Using suitable identities, evaluate the following:

$52 \times 53$

Question 86 (iii)

Using suitable identities, evaluate the following:

$(103)^{2}$

Question 86 (v)

Using suitable identities, evaluate the following:

$(1005)^{2}$

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program