Question

Using a suitable identity, find the following.(7p³-5a³)²​

Answer 1

Step-by-step explanation:

According to ur question,

{(203)}^{2}(203)

2

Can be written as,

{(200 + 3)}^{2}(200+3)

2

By using the property,

{(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}(a+b)

2

=a

2

+2ab+b

2

we get,

( {200 + 3)}^{2} = {(200)}^{2} + 2 \times 200 \times 3 + {(3)}^{2}(200+3)

2

=(200)

2

+2×200×3+(3)

2

Now,

40000 + 1200 + 940000+1200+9

We get,

4120941209

Hence,

{(203)}^{2} = 41209(203)

2

=41209

u'r done!!

Thnx✌️♥️~