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r-ruslan [8.4K]
2 years ago
11

Rewrite the equation 8x + 6x^2 -7=x^2 in standard form and identify a, b, and c.

Mathematics
1 answer:
Vladimir79 [104]2 years ago
6 0

Answer:

5x^2+8x-7=0\\a=5\\b=8\\c=-7

Step-by-step explanation:

The standard form of a quadratic is ax^2+bx+c=0. You need to subtract the x^2 from the right to set the quadratic equal to 0. Then a,b, and c are equal to the values of the coefficients in front of the terms.

If this helped, a brainliest would be greatly appreciated!

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Part 1
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Answer:

a)  A n  (B' n C') =  {3, 9}.

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Step-by-step explanation:

a)  Rewriting C ; C = {4,5,6,7,8}

B' = {3,5,7,9} and C' = {2, 3, 9}

so (B' n C') = {3, 9}

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b)  {A U B} = { 2,3,4,5,6,7,8,9} and {B U C} = {2,4,5,6,7,8}

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