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
fredd [130]
3 years ago
13

Factor and solve X^2+7x-8=0

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0
(X^2+8x)-(x-8)=0
x(x+8)-1(x+8)=0
(X-1)(x+8)=0
X= 1
X= -8
You might be interested in
Help, 3+7x=12, what is x?
liraira [26]
So just your normal equation. 
We need to isolate x alone. 
First lets write out our equation 
3 +7x = 12 

Lets do this step by step. 

first subtract 3 from both sides. 
3 + 7x = 12  
-3        = -3  it cancels out on the left side and we solve on the right side. 
*************
7x = 9 

second we divide both sides by 7 
7x = 9 
÷7 = 7      we got the x alone and we just write 9/7 as our answer. 

x = 9/7 

Or as a decimal. 
9/7 could be <span>1.28571428571429
</span>
Either will work. 
x = 9/7 
or 
x = <span>1.28571428571429
</span>
Have a nice day. :)



3 0
4 years ago
A safety regulation states that the height hh of a guardrail should be 106 centimeters with an absolute deviation of no more tha
AlexFokin [52]
Well 106 divided by 7 is 15 so 15 times 7 is 106
6 0
3 years ago
Given that 7x – 2y = 30
weeeeeb [17]

Answer:

x=32/7

Step-by-step explanation:

7x-2(1)=30  Plug in 1 as y and simplify.

7x-2=30     Add 2 on both sides of the equation.

  <u>+2 +2</u>

7x=32         Divide both sides of the equation by 7.

<u>/7   /7</u>

x=32/7

Hope this helps...have an amazing day (。・∀・)ノ゙

8 0
3 years ago
if f(g(x)) = x and g(f(x)) = x, and f(x) passes through the point (5,-7), and g'(-7) = -2/3, then find the value of f'(5).
Marysya12 [62]
So it is given that f(x) and g(x) are inverse of each other.

Then f(5) = -7 and hence g(-7) = 5

Now let's use f( g( x ) ) = x

Now take deviation. Use chain rule:

f'( g(x) ) g'( x ) = 1

Plug in x = -7

f'( g( -7 ) ) g'( -7 ) = 1

f'( g( -7 ) ) · -2/3 = 1

f'( g( -7 ) ) = -3/2

f'( 5 ) = -3/2

Hope this helps.
5 0
3 years ago
State the degree: 11m^3n^2p
Vadim26 [7]
<h3>Answer:  6</h3>

Explanation:

Using the rule that x = x^1, we can rewrite the p as p^1

So 11m^3n^2p is the same as 11m^3n^2p^1

The exponents are: 3, 2, 1

Those exponents add up to 3+2+1 = 6

The degree of a monomial like this is simply equal to the sum of the exponents.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.
    9·2 answers
  • Which expression is equivalent to -3.5(4x – 3)?
    7·1 answer
  • A football team must move the ball forward at least 10 yards from its starting point to make a first down.if the team has 3 loss
    7·1 answer
  • Ken spent 1/5 of his allowance on a movie, 3/8 on snakes, and 2/7 on games. If of his allowance was $20, how much did Jen have l
    8·1 answer
  • Find the point(s) of intersection for<br> y = x2 + 3x – 4 and y = 4x + 2
    5·1 answer
  • Find the value c that completes the square for x^2-8x+c
    10·1 answer
  • What is the inverse of the equation f(x)=3x−8
    14·1 answer
  • #5) Greg worked these hours last week: Monday, 9; Tuesday, 8 %; Wednesday 9.25; Thursday, 11; and Friday 9 3/4.
    5·1 answer
  • (1)The volume of a rectangular prism is 99mm³. Its width is 4.5mm, and its height is 2.2mm. What is its length?
    7·1 answer
  • Writing an Equation in Vertex Form
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!