tions
What did you do to find the first term of the product? the second term? the last
term?
How will you determine the sign of the middle term?
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Given : (a ± b)²
To Find : What did you do to find the first term of the product? the second term? the last term?
How will you determine the sign of the middle term?
Solution:
(a ± b)² = a² ± 2ab + b²
First Term = a² = square of 1st Term in Expression
Second term = 2ab = 2 * multiplication of both term in expression
sign of 2nd/middle term is same as sign between both terms in expression
Last term = b² = square of 2nd/Last Term in Expression
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