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Olenka [21]
3 years ago
12

HELP!!! 100 POINTS ANSWER FAST

Mathematics
2 answers:
anastassius [24]3 years ago
8 0

Answer:

(x^2-4)^2 = 9

Step-by-step explanation:

First, isolate the constant:

x^2-8x = -7

Then, since (a-b)^2 = a^2-2ab+b^2, you should add 16(4^2) to both sides:

x^2-8x+16 = 9

Now, we can rewrite the right-hand side as (a-b)^2:

(x-4)^2 = 9

Viktor [21]3 years ago
4 0

Answer:

  • (x - 4)^2 = 9

Step-by-step explanation:

<u>Completing the square</u>

  • x^2 - 8x + 7 = 0
  • x^2 - 2*4x + 16 - 9 = 0
  • (x^2 - 2*4x + 4^2) = 9
  • (x - 4)^2 = 9

<u>The blanks are</u>

  • - 4 and 9
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It should be -64

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F left parenthesis x right parenthesis equals 9 x cubed plus 2 x squared minus 5 x plus 4 and g left parenthesis x right parenth
Jet001 [13]
The answer is 2x(2x²+x+1).

When we subtract polynomials we combine like terms:
(9x³+2x²-5x+4)-(5x³-7x+4)

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4x³+2x²+2x

Each of these is divisible by 2, and each has an x, so we factor those out:
2x(                        )

4x³/2x = 2x²:
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2x/2x = 1:
2x(2x²+x+1)
3 0
3 years ago
Zinnia and ruby earn $50 per week for delivering pizzas. Zinnia word for X weeks and earned an additional total bonus of $13. Ru
Pani-rosa [81]

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8 0
3 years ago
how to factor -9z^2 + 10z - 1 = 0 it’s been a while since i’ve been in school and i can’t seem to remember how please help
vichka [17]

Answer:

z = 1/9   and    z = 1

Step-by-step explanation:

-9 z^{2} + 10z - 1 = 0

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You can check the answer using foil method

Then,

(-9z+1) = 0

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z = 1/9

(z-1) = 0

z = 1

Answers:

z = 1/9

z = 1

7 0
3 years ago
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