4 years ago

2 less than the square of a number.

Mathematics

1 answer:

olasank [31]4 years ago

7 0

Answer:

n²-2

Step-by-step explanation:

Let's let n stand for a number. 2 less than a square of a number, that means, the result of n²-2 is two less than n². I hope this makes sense!

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3 years ago

-46 times a number minus 19 is equal to 86 less the number

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Answer:

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Step-by-step explanation:

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lets break it down

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Read 2 more answers

Solve the equation x+2/2=4/2

antiseptic1488 [7]

$\frac{x+2}{2} = \frac{4}{x}$
times both sides by 2x
x(x+2)=2(4)
x²+2x=8
minus 8 both sides
x²+2x-8=0
factor
what 2 numbers multiply to -8 and add to 2
-2 and 4
(x-2)(x+4)=0

set to zero
x-2=0
x=2

x+4=0
x=-4

x=-4 and 2

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3 years ago