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ch4aika [34]
3 years ago
9

Need help with theses questions please

Mathematics
1 answer:
Olin [163]3 years ago
7 0
Hello:
3x²+5x+2=0
delta = (5)²-4(3)(2)=1
x =( -5 <span>±1)/6
x= -2/3 or x=-1

t4-81=(t²)² -9² = (t²-9)(t²+9) =(t-3)(t+3)(t²+9)....(answer B)</span>
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ANSWER ASAP ILL MARK BRAINLIEST!!!!
Korolek [52]

Answer:

2 {x}^{2}  - 6x - 1 = 0 \\ a = 2 \:  \:  \:  b =  - 6 \:  \:  \: c =  - 1 \\  \\ x =  \frac{6\binom{ + }{ - } \ \sqrt{  {6}^{2} - 4(2)( - 1)}   }{2 \times 2}  \\  \\ x =  \frac{6 \binom{ + }{ - } \sqrt{44}  }{4}  \\  x =  \frac{6 +  \sqrt{44} }{4} \\  \\  or x =  \frac{6 -  \sqrt{44} }{4}

I hope that is useful for you :)

8 0
2 years ago
2( 4x + 2) = 4x - 12(x-1)​
aksik [14]

Answer:

x=\frac{1}{2}

Step-by-step explanation:

distribute 2 into (4x+2) and -12 into (x-1)

8x+4=4x-12x+12

combine like terms

8x+4=-8x+12

add -8x on both sides

8x+8x+4=12

16x+4=12

subtract 4 on both sides

16x=8

divide both sides by 16

x=1/2

hope this helps

8 0
3 years ago
PLEASE HELP ME WITH MY GEOMETRY HOMEWORK!!!!
Oduvanchick [21]
I don’t see the question
7 0
3 years ago
PLEASE HELPPP!!! Which expression is equivalent to sum of quantity negative three and one third times n plus one sixth end quant
uranmaximum [27]

The given expression is equivalent to the expression - 11/6 n - 1/12. Then the correct option is C.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The sum of capacity minus three and one-third times n plus one-sixth ended capacity + capacity one and three-sixths times n minus three-twelfths end quantity.

Let n be the number. Then the expression will be

⇒ -(3  1/3)n + 1/6 + (1  3/6)n - 3/12

Simplify the equation, then we have

⇒ -(3  1/3)n + 1/6 + (1  3/6)n - 3/12

⇒ -10/3 n + 3/2 n + 1/6 - 1/4

⇒ -11/6 n - 1/12

The given expression is equivalent to the expression - 11/6 n - 1/12. Then the correct option is C.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ1

8 0
11 months ago
If a, b, and c are prime numbers, do (a +<br> b.and c have a common factor that is greater than 1 ?
valina [46]

Let's do the math. In the example a =2, b = 3, c = 5. If we are trying to see if the sum of these numbers has a common factor more than 1 do the math. 2 + 3 + 5 = 10. Ten has four factors which are 1, 2, 5, and 10. So the answer to your question is yes.

8 0
3 years ago
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