Question

9(3x+1)^2-16(x-1)^2​

Answer 1

Answer:

9(3x^2+1^2+2×3x×1)-16(x^2+1^2-2×x×1)

9(9x^2+1+6x)-16(x^2+1-2x)

81x^2+9+54x-16x^2-16+32x

65x^2+86x-7

Answer 2

Answer:

The above answer is correct

Step-by-step explanation:

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