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MatroZZZ [7]
4 years ago
13

Solve the following equation by factoring: x^2 - 2x - 48 = 0

Mathematics
1 answer:
Vlada [557]4 years ago
4 0

Answer:

B. x=-6 or x=8

Step-by-step explanation:

To solve this, factor the equation x^2-2x-48. Since -48 is negative, one of the factors has to be negative and one has to be positive. Since the coefficient of x is -2, the factors have to sum to -2. Trying factors, we realize that (x-8)(x+6)=0 works. Solving, x-8=0 and x+6=0, or x=8 or x=-6.

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What times 3 equals 20
e-lub [12.9K]
Your question can be reworded as
? X 3 = 20.

All you do is divide by 3 on both sides to isolate the x. It basically looks like a magician makes the 3 disappear and then appear on the other side.
\frac{?\times 3}{3} =  \frac{20}{3}
?= \frac{20}{3}

Tadah! We have mathmagically found the answer.

The answer is \boxed{ \frac{20}{3}}\boxed in fraction form or \boxed{6.66}\boxed in decimal form.
5 0
4 years ago
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15x8-x=4(2x+20) solve
Cloud [144]

Answer:


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6 0
3 years ago
If random samples of size 11 are drawn from a population with mean 7 and standard deviation 3 , find the standard error of the d
allsm [11]

Here,

n = 11

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We know that,

S.E. = σ/\sqrt{n}

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5 0
3 years ago
Simplify the expression b+2/b^2-4
Lubov Fominskaja [6]
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8 0
3 years ago
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Pls help me I don't understand!!!!!!!!
jeka57 [31]

Answer:

X=SMALL BOX.

Y=LARGE BOX

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3 0
3 years ago
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