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professor190 [17]
2 years ago
6

FIND x : x+(x+1)+(x+2)=(x+1)^2 A. 1 B. 0 C. 3 D. 2

Mathematics
2 answers:
Over [174]2 years ago
6 0

Answer:

x = - 1, x = 2

Step-by-step explanation:

Given

x + (x + 1) + (x + 2) = (x + 1)² ← expand using FOIL , then

x + x + 1 + x + 2 = x² + 2x + 1 , that is

3x + 3 = x² + 2x + 1 ( subtract 3x + 3 from both sides )

0 = x² - x - 2 ← in standard form

0 = (x - 2)(x + 1) ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 2 = 0 ⇒ x = 2

inysia [295]2 years ago
5 0

Answer:

2

Step-by-step explanation:

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TiliK225 [7]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
In Exercises 10 and 11, points B and D are points of tangency. Find the value(s) of x.<br>​
Lemur [1.5K]

In both cases,

AB^2=AD^2

(as a consequence of the interesecting secant-tangent theorem)

So we have

10.

(4x+7)^2=(6x-3)^2

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20x^2-92x-40=0

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(5x+2)(x-5)=0\implies\boxed{x=5}

(omit the negative solution because that would make at least one of AB or AD have negative length)

11.

(4x^2-18x-10)^2=(x^2+x+4)^2

16x^4-144x^3+244x^2+360x+100=x^4+2x^3+9x^2+8x+16

15x^4-146x^3+235x^2+352x+84=0

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(again, omit the solutions that would give a negative length for either AB or AD)

7 0
3 years ago
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AysviL [449]

Step-by-step explanation:

function is when the x- intercept does not repeat the answer is D because the numbers didn't repeat

7 0
3 years ago
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OLEGan [10]
The answer is x=29
I hope this helps you
5 0
2 years ago
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