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nydimaria [60]
1 year ago
7

Subtract-3x - 8 from 4x² - 7x - 2.

Mathematics
1 answer:
allsm [11]1 year ago
3 0

( {4x}^{2}  - 7x - 2) - (3x - 8) \\  \\  {4x}^{2}  - 7x - 2 - 3x + 8 \\  \\  {4x}^{2}  - 10x + 4.

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Answer:

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Step-by-step explanation:

The vertex form of the equation is

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The vertex is (-3,-1)

y = a(x- -3)^2 -1

y = a(x+3)^2 -1

Pick another point  (-2,0) and substitute it into the equation

0 = a(-2+3)^2 -1  to find a

0 =a(1)^2 -1

0 = a-1

1 = a

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