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Eduardwww [97]
3 years ago
9

What should you do first in solving the quadratic equation? x² + 18x + 81 = 25

Mathematics
1 answer:
N76 [4]3 years ago
3 0

Answer:

x= -4,-14

Step-by-step explanation:

Try first to solve the equation by factoring. Be sure that your equation is in standard form before you start your factoring attempt.

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8.(Extra Credit)Knowing the value of x determine the numerical value of all the dimensions on the model.Label them accordingly.
Ber [7]

Answer:

I don't know but a hunch

Step-by-step explanation:

can you add the 2 closets .then the bed and bathroom.Add those up then finally the living room you can get that answer

5 0
3 years ago
Need help. Please and thank u
Marina CMI [18]

Answer:

1)

(x + 3)(x + 4) = x^2 + 4x + 3x + 12 = x^2 + 7x + 12

Instead of multiplying 3 and 4 the student added them which gave them the answer of 7 when the correct answer is 12.

2)

a) x^2 + x - 2

b) x^2 - 7x + 10

c) 4x^2 - 1

d) x^2 + 10x + 25

Step-by-step explanation:

a. (x - 1)(x + 2)

x(x) - 1(x) + 2(x) - 1(2)

x^2 - 1x + 2x - 2

x^2 + x - 2

------------------------------------------

b. (x - 5)(x - 2)

x(x) - 5(x) - 2(x) - 5(-2)

x^2 - 5x - 2x + 10

x^2 - 7x + 10

------------------------------------------

c. (2x + 1)(2x - 1)

2x(2x) + 1(2x) - 1(2x) + 1(-1)

4x^2 + 2x - 2x - 1

4x^2 - 1

------------------------------------------

d. (x + 5)^2

(x + 5)(x + 5)

x(x) + 5(x) + 5(x) + 5(5)

x^2 + 5x + 5x + 25

x^2 + 10x + 25

7 0
3 years ago
What is an equivalent fraction for 4
Flauer [41]
An Equivalent Fraction Would be 4/4 Because 4 Over 4 Is The Same As 4.
3 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLIESTT
frez [133]

Answer:

<u></u>

<u>the answer is 5/8</u>

Step-by-step explanation:

5 x 7/ 14 x 4

=35/ 56

=5/8

6 0
4 years ago
Little help with this problem please
Karo-lina-s [1.5K]

Answer:

0.416667

Step-by-step explanation:

3 0
4 years ago
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