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Mars2501 [29]
3 years ago
5

How to simplify 6x 2(3x -9y 5) (-9)

Mathematics
1 answer:
12345 [234]3 years ago
4 0
Disturbute the middle thing. 2*3x = 6x, 2*-9y= -18y,
2*5=10

now it is 6x 6x-18y 10 *-9
now mix the x , now it is 12x-18y*10*-9
now multipy the whole numbers, now it is 12x-18y*-90

the answer if we simplify it is 12x-18y*-90
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You can divide the whole expression by -3:

-3x^2+24x=27 \iff x^2-8x = -9

Recalling that

(x-a)^2=x^2-2ax+a^2

Let's compare the middle term:

-8x = -2ax \iff a=4

So, we want to complete

(x-4)^2 = x^2-8x+16

Which differs from x^2-8x by 16. So, if we add 16 to both sides, we have

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Answer:

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Liono4ka [1.6K]

Answer:

(2, -1)

Step-by-step explanation:

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What is the absolute value of the complex number -4-√2
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-4-√2 i -> take a = -4 and b = -√2

|-4-√2 i| = √[ (-4)² + (<span>-√2)² ]
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ArbitrLikvidat [17]

Step-by-step explanation:

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