Question

Expand 2x+1 whole square

Answer 1

Answer:

4x²+4x+1

Step-by-step explanation:

(2x+1)²

Use the Identity (a+b)² = a²+2ab+b²

= (2x)²+2(2x)(1)+1²

= 4x²+4x+1

Answer 2

Consider (2x+1) as { a+b }
(A+B) ^2 = a^2+2xaxb+b^2
So, (2x+1)^2= 2x^2+2x2Xx1+1^2
2x+1 whole square = 4X^2+4X+1
2x+1 whole square is 4X*2+4X+1
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