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2 years ago

Pls help me it’s due tomorrow!!

Mathematics

2 answers:

Zarrin [17]2 years ago

8 0

-2(-3)^2-(-3)+1 = -14

Marianna [84]2 years ago

5 0

You would plug in -3 where the “x”s are
-2(-3)^2-(-3)+1
and the double negatives of -(-3) will turn into a +3
and the answer should be -14

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3 years ago

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3 years ago

2x + y = -2

cupoosta [38]

Answer is A
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3 years ago

Read 2 more answers

Anyone know the answer??

Serggg [28]

Answer:

the second option

Step-by-step explanation:

in ax²+bx+c = 0:

$x = \frac{-b+-\sqrt{b^2-4ac} }{2a}$

subtract both sides by 6 to get to this form, as the right side will be left with 0

6x² + 8x - 6 = 0

here, the coefficient for x² (a) is 6, the coefficient for x (b) is 8, and the remaining number added on (c) is -6

plugging our numbers into the formula, we get

$x = \frac{-8+-\sqrt{(-8)^2-4(6)(-6)} }{2(6)}\\= \frac{-8+-\sqrt{64-(-144)} }{12} \\= \frac{-8+-\sqrt{208} }{12} \\ = \frac{-8+\sqrt{208} }{12} or \frac{-8-\sqrt{208} }{12}\\= 0.53518375848 or -1.86851709182\\= approximately -1.87, 0.54$

8 0

2 years ago