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baherus [9]
3 years ago
13

Use the quadratic formula to solve the equation. -2x^2-x+7=0.

Mathematics
1 answer:
Furkat [3]3 years ago
8 0
<span>-2x^2-x+7=0  
Variable with the highest degree's (exponent) constant, -2 is a, next variable's constant, -1 is b, the constant or number without a variable, 7 is c

using substitution put the numbers into the formula
</span>(-b±√(b^(2)-4ac))/(a^(2))

(-(-1)±√((-1)^(2)-4(-2)(7))/((-2)^(2)) simplify 

(1±√(1+56))/4

1±√(57)/4 is your answer
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IrinaK [193]

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Step-by-step explanation:

6 0
3 years ago
Determine the total number of roots of each polynomial function.<br><br> f (x) = (3x4 + 1)2
stiks02 [169]
Answer:

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6 0
2 years ago
I di not understand these any help greatly appreciated thank you
Rzqust [24]

Answer:

Step-by-step explanation:

First you need to convert it to a linear expression.

3x - y = 4

+3x        +3x

-1y = 3x + 4

---  ----- -----

-1     -1    -1

y = -3x -4

6x - 2y = 7

-6x         -6x

-2y = -6x + 7

----    -----   -----

-2       -2     -2

y = 3x - 3.5

-3x - 4 = 3x - 3.5

+3x         +3x

-4 = 6x - 3.5

+3.5       +3.5

-0.5 = 6x

-----   -----

6         6

-0.5

------ =  x

6

4 0
3 years ago
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