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what is (×+4)² using foil method​

Sagot :

Answer:

(x+4)(x+4)

F = (x)(x) = x^2

O = (x)(4) = 4x

I = (4)(x) = 4x

L = (4)(4) = 16

ANSWER: x^2 + 8x + 16

Answer:

x² + 8x + 16

Step-by-step explanation:

( x + 4 )² = ( x + 4 ) ( x + 4 )

First Term = x × x = x²

Outer Term = x × 4 = 4x

Inner Term = 4 × x = 4x

Last Term = 4 × 4 = 16

4x + 4x = 8x

Combine:

x² + 8x + 16

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