1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inna [77]
3 years ago
14

Solve the quadratic equation. x2+8x+16=25

Mathematics
1 answer:
babunello [35]3 years ago
8 0

Answer:

x=1,-9

Step-by-step explanation:

Move all terms to the left side of the equation and simplify.

Tap for more steps...

x

2

+

8

x

−

9

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values

a

=

1

,

b

=

8

, and

c

=

−

9

into the quadratic formula and solve for

x

.

−

8

±

√

8

2

−

4

⋅

(

1

⋅

−

9

)

2

⋅

1

Simplify.

Tap for more steps...

x

=

−

4

±

5

The final answer is the combination of both solutions.

x

=

1

,

−

9

You might be interested in
This is an angle whose measure is exactly 90°
Radda [10]

Answer:

A right angle

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Lines a and bare parallel 79 What is the measure of angle b? Enter your answer in the box b=​
Len [333]

If lines a and b are parallel, then aº = 79º = dº = bº.

6 0
3 years ago
Complete the equation for h(x).<br>h(x) =​
bulgar [2K]

Answer:

I think the answer is hx to the power of 2

Step-by-step explanation:

4 0
3 years ago
Please can someone help me with my maths? I’m so confused
Blababa [14]
The y intercept is 0.5 because thats where the line starts.
the slope/gradient of the line is 1.5.
this would be written in the form: y=1.5x+0.5
5 0
3 years ago
What is the solution to -55+q=7<br><br> A. a=-62<br><br> B. q=62<br><br> C. q=42<br><br> D. q=-42
Scorpion4ik [409]

Answer:

C, as q = 62.

Step-by-step explanation:

When you have an equation, your goal is to get the letter you are solving for alone. To do this, you employ a simple rule: what you do to one side of the equals sign, you must do the other.

To isolate q in -55 + q = 7, you must add 55 to the left side. q is now alone. However, because we added 55 to the left side, we must also do it to the right! 7 + 55 = 62, so the new right side is 62. Hence, we get to this:

q = 62

The answer is now in plain sight!

4 0
3 years ago
Read 2 more answers
Other questions:
  • Can you find the first and third one please!
    11·1 answer
  • How to find the missing dimension of a triangular prism ​
    12·1 answer
  • Write the following fraction as a decimal<br> 299 792 458/ 1000000<br><br> what is it?
    14·1 answer
  • Malachy and Paul win some money and share it in the ratio 4:5. Malachy gets £44. How much did Paul get?
    15·1 answer
  • Your total gas bill for one week was 15.43 , how much was it for one month
    9·1 answer
  • How can you solve the literal equation y-3x=13
    14·1 answer
  • Doug needs a ladder that is at least 12 meters long. he has a ladder that is 30 feet long. about how many feet too short is this
    11·2 answers
  • The refrigerator part of a refrigerator freezer has a volume of 27 cubic feet. The freezer part is 2 feet high 2 feet deep and 3
    14·1 answer
  • What is the area of this triangle in square units? 10 &amp; 7
    9·2 answers
  • Help me out please an thank you
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!