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2 years ago

What is the answer for this problem -8 - -2 = ?

Mathematics

2 answers:

VashaNatasha [74]2 years ago

8 0

Answer:

if im not wrong im pretty sure its -6

explanation: -8 - -2 = -6

AlexFokin [52]2 years ago

8 0

The answer is -6 because when negative and negative it become positive so it like -8+2=6

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3 years ago

What are the possible values of x in 8x2 + 4x = -1?

Westkost [7]

Answer:

The possible values of x are:

x= $\frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18$

and

x= $\frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68$

Step-by-step explanation:

$8x^2+4x+1=0$

Using Quadratic formula to solve this equation:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\a = 8 \,\, b = 4\,\, c = -1\\Putting \,\, values \,\, in \,\, the\,\, equation\\x= \frac{-4\pm\sqrt{(4)^2-4(8)(-1)}}{2(8)}\\x= \frac{-4\pm\sqrt{16+32}}{16}\\x= \frac{-4\pm\sqrt{48}}{16}\\x= \frac{-4+ \sqrt{48}}{16} \,\, and \,\, x= \frac{-4- \sqrt{48}}{16}\\x= \frac{-1+ \sqrt{3}}{4} \,\, and \,\, x= \frac{-1- \sqrt{3}}{4}$

The possible values of x are:

x= $\frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18$

and

x= $\frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68$

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3 years ago

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svetoff [14.1K]

Answer:

I'm sorry i dont think i understand what do u need help with

Step-by-step explanation:

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2 years ago

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2 years ago

1+4=5<br> 2+5=12<br> 3+6=21<br> 8+11=

jek_recluse [69]

=12-5=7
=21-12=9
when u look at they have a diffrence of 2 so the answer will have a diffrence of 2 =11

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3 years ago