Question

please answer this 2 question ots really important
please help me​

Answer 1

Step-by-step explanation:

1. 4(4+2x) -2x(4+2x)=16 +8x-8x-4x=16 -4x = 16-4x (16 +4x²) = 16(16+4x²)-4x(16 + 4x²) =256-64x² -64 -16x²=256-64-64x²-16x² =92-48x²

Answer 2

Answer:

(4-2x)(4+2x)(16+4x²)

a-b)*(a+b)=a²-b²

(4-2x)(4+2x)=(16-4x²)

(16-4x²)(16+4x²)

→a²-b²

→{16²-(4x²)²}

→(256-16x⁴)

Step-by-step explanation:

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