Math, asked by rutujakavita50041, 1 month ago

using suitable identities to evaluate 1005×990

Answers

Answered by 10b36saheerkhan

1

Answer:

1005×995=994950 is the correct answer of this question

Answered by natarajan17041975

2

Step-by-step explanation:

(1000+5) × ( 1000-10) which belongs to( x+a)(x+b)

= x²+(a+b)x+ab

= 1000²+(5-10)1000+5(-10)

= 1000000+(-5)1000-50

=1000000-5050

= 994950

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