Question

rewrite equations with a perfect square: x^2+2x+1

Answer 1

Answer:

(x+1)^2

Step-by-step explanation:

x^2 +2x+1

What 2 numbers multiply to 1 and add to 2

1*1 = 1

1+1 =2

(x+1) (x+1)

This is the same factor twice

(x+1)^2

Answer 2

Answer:

(x + 1)(x + 1)

Step-by-step explanation:

Do the opposite of FOIL. Find factors of x² and 1 that, when added, will equal 2x.

x² + 2x + 1

x              1

x              1

(x + 1)(x + 1) is your answer.

Check: Follow FOIL. FOIL = First, Outsides, Inside, Last.

(x)(x) = x²

(x)(1) = x

(1)(x) = x

(1)(1) = 1

x² + x + x + 1

Combine like terms.

x² + (x + x) + 1 = x² + 2x + 1.

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