Question

expand each of the following by suitable identity 710³

class 9th step by step please ​

Answer 1

Answer:

710³

710× 710×710

357,911,000.

Answer 2

Answer:

357,911,000

Step-by-step explanation:

710 cube can be written as (700 +10) cube

Now using identity,

(x+y)cube = x cube + y cube +3xy(x+ y)

Here,

x = 700

Y= 10

Now putting the values,

= (700)cube + (10)cube + 3x 700x10 (700+10)

= 343,000,000 + 1000 + 21,000 x 710

= 343,000,000 + 1000 + 14,910,000

= 357,911,000

I am also in 9th and on Tuesday I have my maths examination so the answer can't be wrong he he :)