Question

Solve 105 cubewith formula a plus b cube

Answer 1

Answer:

$\large{\underline{\boxed{\sf 1,157,625}}}$

Step-by-step explanation:

Given that ;

(105)³

It can be written as ;

(100 + 5)³

Using identity here ;

• (a + b)³ = a³ + b³ + 3ab(a + b)

⇒ (100 + 5)³

⇒ (100)³ + (5)³ + 3 * 100 * 5 (100 + 5)

⇒ 1,000,000 + 125 + 1500 * 105

⇒ 1,000,125 + 157,500

⇒ 1,157,625

Hence, the answer is 1,157,625.

Answer 2

Answer:

1157625

Step-by-step explanation:

we know that,

(a+b)³=a³+b³+3ab(a+b)

105=(100+5)

so,

(100+5)³=100³+5³+3×100×5(100+5)

=1000000+125+1500(105)

=1000000+125+157500

=1157625

follow me please mark it as the brainliest