Question

what must be added to x²+4x+1 to make it a whole Square​

Answer 1

Answer:

3 should be added to make it a whole number.

Step-by-step explanation:

x² + 4x + 1 + 3

= x² + 4x + 4

Now, using identify of,

a² + 2ab + b²

(x)² + 2.x.2 + (2)²

= (x+2)²

Hope it helps.

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Answer 2

Answer:

3 should be added to make it as

(x)^2 + 2(x)(2) + 1+3

(x)^2 + 2(x)(2) +(2)^2

(x+2)^2