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2 years ago

X²+x-6=0hãy tìm giá trị của x trong câu trên

Mathematics

1 answer:

Gennadij [26K]2 years ago

6 0

Tìm giá trị của x :

${x}^{2} + x - 6 = 0$

$x {}^{2} + 3x - 2x - 6 = 0$

$x(x + 3) - 2(x + 3) = 0$

$(x + 3)(x - 2) = 0$

Bây giờ, có hai trường hợp :

Trường hợp 1. khi nào x + 3 = 0

x = -3

Trường hợp 2. khi nào x - 2 = 0

x = 2

Tôi hy vọng nó đã giúp !

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Step-by-step explanation:

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1 year ago

Please explain each step 5x-7=7x-17

EleoNora [17]

Let's get the same terms on the same side.
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Now we finally have 10=2x and if we divide both sides by 2

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Let's check by substituting 5 in the original equation:
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3 years ago

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erma4kov [3.2K]

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3 years ago

Help me please I will give brainliest.

damaskus [11]

Answer:

BEE

Step-by-step explanation:

please brainliest! PLEASE

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I have a ninety-six percent just trust

but I don't want to explain it, so yeah.

<h2>*THIS USER HAS BEEN VERIFIED AND ACCEPTED AS AN OFFICIAL BRAINLY© USER, ALLOWING THAT YOU GOT LUCKY FOR HAVING A PRO ANSWER THIS QUESTION*</h2>

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2 years ago

Answer correctly pls

bija089 [108]

Answer:

The expression that represents the total number of raffle tickets sold by Trudy and Shaun is 3x/2 + 3.

Step-by-step explanation:

Let's represent Shaun for S and Trudy for T.

We know that:

=> S = x tickets sold
=> T = x/2 + 3

The question is asking for the total number of raffle tickets Shaun and Trudy have sold altogether. Let's add both the sellers.

S + T = x + x/2 + 3
=> S + T = 2x/2 + x/2 + 3
=> S + T = 3x/2 + 3

Hence, the expression that represents the total number of raffle tickets sold by Trudy and Shaun is 3x/2 + 3.

Hoped this helped.

$BrainiacUser1357$

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2 years ago