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Find the product (a+b+c)(a+b-c)

Posted by Anil Agrawal 6 years, 11 months ago

CBSE > Class 08 > Mathematics

3 answers

Ram Kushwah 6 years, 11 months ago

Sorry mistsken

I write in brief now

(a+b+c)(a+b-c)

=(a+b)²-c²

=a2+b2-c2+2ab

0Thank You

Ram Kushwah 6 years, 11 months ago

(a+b+c)(a+b+c)

=a(a+b+c)+b(a+b+c)+c(a+b+c)

=a2+ab+ac+ab+b2++bc+ca+bc+c2

=a2+b2+c2+2(ab+bc+ca)

0Thank You

Yogita Ingle 6 years, 11 months ago

(a + b + c) (a + b -c)
= a (a + b -c) + b (a+ b -c) + c (a + b -c)
= a2 + ab - ac + ab + b2 - bc + ac + bc - c²

= a²+ b² - c² + ab + ab
= a²+ b² - c² + 2ab

0Thank You

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Posted by Monika 8B 5 months, 2 weeks ago

CBSE > Class 08 > Mathematics