Which expression is equivalent to (4 - 2x) (4 + 2x)? o (16 – 2x)? O (16 + 2x)? O4 - 4x2 O 16 - 4x2 O 16 – 8x + 4x2 O 16 – 8x - 4x2 16 - 16x - 4x2

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Step-by-step explanation:kjhgfds

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!