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IrinaK [193]
2 years ago
8

Solve: (a+b+c) (a+b-c)

Mathematics
2 answers:
Katen [24]2 years ago
7 0

Answer:

<h2><u><em>a²+2ab+b²-c²</em></u></h2>

Step-by-step explanation:

Solve:

(a+b+c) (a+b-c)=

(a²+ab-ac+ab+b²-bc+ac+bc-c²)=

a²+ab-ac+ab+b²-bc+ac+bc-c²=

a²+2ab+0ac+b²+0bc-c²=

a²+2ab+b²-c²

zvonat [6]2 years ago
4 0

Answer:

The answer is a² + 2ab + b² - c²

Step-by-step explanation:

(a + b + c) × (a + b - c)

a² + ab - ac + ba + b² - bc + ca + cb - c²

a² + ab + ba - ac + ca + b² - bc + cb - c²

a² + 2ab + b² - c²

Thus, The answer is a² + 2ab + b² - c²

<u>-TheUnknownScientist</u><u> 72</u>

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Answer:

Step-by-step explanation:

Volume of triangular prism:

V_{1} = A_{base} × H

Volume of triangular pyramid:

V_{2} = \frac{A_{base} *H}{3}

The total volume of figure is

V = V_{1} + V_{2}

5 0
2 years ago
What is the solution to the inequality x2 &lt; 16 – 6x?
zaharov [31]

Answer:

D

Step-by-step explanation:

2x < 16 - 6x

Bring the variables to one side

2x < 16 - 6x

+6x       +6x

8x < 16

Divide both sides by the coefficient

8x/8 < 16?8

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4 0
3 years ago
Give the domain of each of the following functions in interval notation.
balandron [24]

Answer:

the domain of f(x) is R  ⇒ ] -∞ , ∞[

the domain of h(x) is x ≤ -5 ⇒ ] -∞ , -5]

Step-by-step explanation:

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8 0
3 years ago
If anyone can solve this quickly I will give brainly
Nataly [62]

Answer:

m∠BFE  = 171º

BE = 219º

Step-by-step explanation:

∠BFE is supplementary to ∠EFC

m∠BFE  = 180 - 9

m∠BFE  = 171º

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

The angle between two chords is equal to half the sum of the intercepted arcs:

∠BFE = (DC + BE)2

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6 0
3 years ago
If the legs of a right triangle are x, (2x - 1) and its hypotenuse is (2x + 1), what is the value of x?​
Ber [7]

Answer:

x=8

Step-by-step explanation:

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(2x + 1)(2x + 1) = x² + 4x²-2x-2x+1

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4x²+4x+1 = 5x²-4x+1

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0= x²-8x

x²-8x=0

x²=8x

x=8

3 0
3 years ago
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