# What is the correct answer of (1+a+b)(1+a+b)

2
by werabre
Yes! Finally I got the answer correctly.

2014-06-19T23:59:12+08:00

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Using distributive property,

(1+a+b)(1+a+b) = 1 + a + b + a + a² + ab + b + ab + b²
= 1 +2a +2b +a² +2ab +b²

Arranged in decreasing exponent: a² +b² + 2ab +2a +2b +1
oh! oo nga pala :) yan ung tama... nagkulang po ako sa 2ab :)
:)
2014-06-20T00:01:32+08:00

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1^2 + a^2 + b^2 + 2a + 2b
= 1 + a^2 + b^2 + 2a + 2b
= a^2 + b^2 + 2a + 2b + 1  -----  (final answer)