burdinekatelyn94
Answered

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Expand (2x - 4)2 using the square of a binomial formula.
(x)2 + 2(x)(4) + 42
O (2x)2 + 2(2x)(4) - 42
O(x2 - 2(x)(4) - 42
(2x)2 - 2(2x)(4) + 42

Sagot :

KimYurii

Step-by-step explanation:

We have to expand,

[tex]\longrightarrow [/tex] (2x — 4)²

  • (a ― b)² = a² + b² ― 2ab

[tex]\longrightarrow [/tex] (2x)² + (4)² ― 2(2x × 4)

[tex]\longrightarrow [/tex] 4x² + 16 ― 2(8x)

[tex]\longrightarrow [/tex] 4x² + 16 ― 16x

[tex]\longrightarrow [/tex] 4x² ― 16x + 16

Hence, solved!

josephbuckley262015

Answer:

D is the correct answer (2x)2 – 2(2x)(4) + 42

Step-by-step explanation:

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