what is (x+1)^2

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what is (x+1)^2

Guest Feb 19, 2015

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Best Answer

(x + 1)² = (x + 1)(x+ 1)

Use FOIL: First (x and x), Outside (x and 1), Inside (1 and x), Last ( 1 and 1):

x·x + 1·x + 1·x + 1·1

= x² + 1x + 1x + 1 (Now, simplify by adding 1x + 1x.)

= x² + 2x + 1

geno3141 Feb 19, 2015

geno3141 · Answer 1 · 2015-02-19T02:17:36

(x + 1)² = (x + 1)(x+ 1)

Use FOIL: First (x and x), Outside (x and 1), Inside (1 and x), Last ( 1 and 1):

x·x + 1·x + 1·x + 1·1

= x² + 1x + 1x + 1 (Now, simplify by adding 1x + 1x.)

= x² + 2x + 1