Question

*( - 45 ) X ( - 9 ) = ?*

1️⃣ 5
2️⃣ ( - 5 )
3️⃣ 405
4️⃣ ( - 405 )​

Answer 1

Answer:

Question

(-45)×(-9)=?

Answer

we know that

$- \times - = +$

so,

we can write this as

=45×9

=405

but as we know the sign always taken of greater number

that's why 405 will be written as (-405)

and (-405) is ur answer

Answer 2

Answer:

Option (3) 405 is the correct answer.

Step-by-step explanation:

Explanation:

Given , (-45) × (-9)

Distributive Property - The distributive property states that combining the products together after multiplying the sum of two or more addends by a number will produce the same outcome as multiplying each addend separately by the number.

In distributive property , if a  ,b and c are three real number than ,

a× (b+ c) = (a× b) +(a× c)

Step 1:

we have (-45) × (-9) ,

⇒ 45 × 9      [productive of two  negative sign become positive  ]

⇒ 45 × (10 -1 )

By distributive property

45 × [10+( - 1)] = (45 × 10 )+ ( 45 × -1 )

⇒45 × [10+( - 1)]  = 450  - 45 = 405

Final answer:

Hence , the value of (-45) × (-9) is 405 ,

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