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Lelu [443]
3 years ago
13

The square of a number minus the number = 20, Can You form a quadratic equation and factorise it?

Mathematics
1 answer:
frosja888 [35]3 years ago
7 0
Yes you can ... here is an example x^2-x=20,   x^2-X-20  factored is (x-5)(x+4)
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5x^2-7x=4x^2-10 solve
Luda [366]

Answer:

x = 0, x = - 3

Step-by-step explanation:

Given

5x² - 7x = 4x² - 10 ← subtract 4x² - 10x from both sides

x² + 3x = 0 ← in standard form

Factor out x from each term

x(x + 3) = 0

Equate each factor to zero and solve for x

x = 0

x + 3 = 0 ⇒ x = - 3

5 0
3 years ago
Anne is designing a shower for a client. The shower includes a triangular-shaped ledge for storage.
Mrrafil [7]
The answer is . (one [point] 4)

((Yes, its correct, checked and took an exam on it))
6 0
4 years ago
Read 2 more answers
Can someone help me how to solve this?
Assoli18 [71]

Answer:

x > -5  in the answer


Step-by-step explanation:

(5 - 3x) / 4 < 5

multiplying both sides by 4:-

5 - 3x < 20

-3x < 15

x > 15/-3

x > -5  (Note the inequality sign is flipped because we are dividing by a negative number)


8 0
4 years ago
Convert 2x - 3y + 1 = 0 to slope-intercept form
Dafna11 [192]
Slope-intercept form is y=mx+b. our goal is to get y by itself on one side of the equation.

2x-3y+1=0
2x+1=3y
3y=2x+1
y=(2/3)x+1/3

That is the same function but in slope-intercept form.
6 0
3 years ago
Is the term (x+1) a factor of the polynomial shown below? <br> f(x)=x^3-10x^2+27x-12
Ksenya-84 [330]

We can tell if this is a factor of the polynomial shown by using the remainder theorem.

First, we need to set x + 1 equal to 0.

x + 1 = 0

Now, we solve for x.

x = -1

Now, we can plug this value into the polynomial, and if the solution is 0, it means there is a remainder of 0, which means they divide perfectly.

(-1)^3 - 10(-1)^2 + 27(-1) - 12 = -50

x + 1 is not a factor of the provided polynomial.

7 0
3 years ago
Read 2 more answers
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