Math, asked by ruhanronakchanchlani, 3 months ago

Evaluate using suitable identities.1. (b-7)²

Answers

Answered by pradiptadas2007

12

Answer:

b²-14b+49

Step-by-step explanation:

(b-7)²

using [(x-y)²=x²-2xy+y²] formula,

=b²-2×b×7+7²

evaluating,

=b²-14b+49

Hope it helps you...

Pls mrk me brainliest...

Answered by Pradipta1339

3

Answer:

b²-14b+49

Step-by-step explanation:

(b-7)²

using [(x-y)²=x²-2xy+y²] formula,

=b²-2×b×7+7²

evaluating,

=b²-14b+49

Hope it helps you...

Pls mrk me brainliest..

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