Question

Evalute 105*108 without multiple directly?

Answer 1

Answer:

11130

Step-by-step explanation:

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Answer 2

✯✯ QUESTION ✯✯

Evalute 105*108 without multiple directly..

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✰✰ ANSWER ✰✰

$\longmapsto\tt{105\times{108}}$

$\longmapsto\tt{(100+5)\times{(100+8)}}$

☛Using Identity : -

$\longmapsto\tt{\small{\boxed{\bold{\bold{\red{\sf{(x+a)(x+b)={x}^{2}+(a+b)x+ab}}}}}}}$

$\longmapsto\tt{{(100)}^{2}+(5+8)(100)+(5\times{8})}$

$\longmapsto\tt{10000+13(100)+(5\times{8})}$

$\longmapsto\tt{10000+1300+40}$

$\longmapsto\tt{\large{\boxed{\bold{\bold{\pink{\sf{Answer:.11340}}}}}}}$

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☛Some More Identities : -

• (x+y)² = x² + 2xy + y²
• (x+y)² = x² - 2xy + y²
• x² - y² = (x + y) (x - y)