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polet [3.4K]
3 years ago
5

Expand each expression and simplify your answers as far as possible

Mathematics
2 answers:
frosja888 [35]3 years ago
8 0

Answer:

1. 12x - 6

2. -2x + 17

Step-by-step explanation:

1.

  • 8x - 2(3 - 2x)
  • 8x - (-2)(3) + (-2)(-2x)
  • 8x + (-6) + 4x
  • (8x + 4x) + (-6)
  • 12x - 6

2.

  • 4x + 5 + (-3)(2x) + (-3)(-4)
  • 4x + 5 - 6x + 12
  • (4x - 6x) + (5 + 12)
  • -2x + 17
Kruka [31]3 years ago
5 0

Answer:

\boxed{\sf 12x-6}

\boxed{\sf -2x+17}

Step-by-step explanation:

\sf 1)\: 8x - 2(3 - 2x)

Apply Distributive Property to multiply -2 by (3-2x):

→ \sf 8x-6+4x

<u>Combine like terms:</u>

→ \sf (8x+4x)

  • \sf 12x

\boxed{\sf 12x-6}

______________________________

\sf 2)\: 4x + 5-3(2x - 4)

Apply <u>Distributive property</u>:

Multiply -3 by (2x-4):

\sf 4x+5-6x+12

<u>Combine like terms:</u>

→\sf (4x+(-6x))

  • \sf -2x

→ \sf (5+12)

  • \sf 17

\boxed{\sf -2x+17}

_____________________________

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Step-by-step explanation:

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Step-by-step explanation:

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