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snow_tiger [21]
3 years ago
12

F(x)=2(x-4)(x+1) how do i convert this factored form to standard form?

Mathematics
1 answer:
zhenek [66]3 years ago
5 0

I'd would do the FOIL method and then distribute the 2. But you can also distribute first. Either way, they want you to expand it.

(x - 4)(x + 1) = x(x) + x(1) - 4(x) - 4(1)

Simplify

x² + 1x - 4x - 4

Combine like terms:

x² - 3x - 4

Now, bring back that 2 to distribute.

2(x² - 3x - 4) = 2(x²) + 2(- 3x) + 2(- 4)

f(x) = 2x² - 6x - 8

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