3 years ago

Solve x2 + 4x + 8 = 0.

1 answer:

6 0

X² + 4x + 8 = 0
x = -(4) ± √((4)² - 4(1)(8))
2(1)
x = -4 ± √(16 - 32)
2
x = -4 ± √(-16)
2
x = -2 ± 4i
2
x = -1 ± 2i
x= -1 + 2i or x = -1 - 2i

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5y + 2 + 6 + 2y 5y + 2(y + 3) + 2 combining like terms 6y − y + 2y + 10 − 4 + 2 Commutative Property Distributive Property arrow

Paraphin [41]

Answer:

Distributive Property

Step-by-step explanation:

5y + 2 + 6 + 2y

= 5y + 2(y + 3) + 2 This is the distributive property of multiplication w.r.t. addition

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The distributive property of multiplication with respect to addition is the one which separates each term by using multiplication and then addition.

So we see that 2 is multiplied with y and 3 and then added with the like terms. If there was a minus sign the property would be distributive over subtraction.

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Answer:

No solution or

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Step-by-step explanation:

To get the solution, move everything to the left side of the equation:

8x²+6x+5 = 0

If you try to factor the equation or graph it, you will see that it will never equal 0.

If you need an imaginary solution you can plug it into the quadratic equation:

-6± $\sqrt{36-160}$ over 16

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-6± $4i\sqrt{31}$ over 16

Simplify the fraction and you can get

(-3± $2i\sqrt{31}$ )/8

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Step-by-step explanation:

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