1.

E) Expanded form of (2x + 1)2 equals toA) 4x2 + 6x3 + 3x + 2 B) 8x3 + 16x2 + 6x + 1C) 8x3 + 12x2 + 6x + 1 D) 4x3 + 12x2 + 6x + 1​

Answer»

ANSWER:

(2X+1)²= by USING IDENTITY a+b² = a²+b²+2ab

here a=2x, b=1

(2x)²+1²+2×2x×1

4x²+1+4x



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