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Nookie1986 [14]
3 years ago
6

Factor and solve the problems in the photo ……….. pleaseeeee help i haven’t done algebra in 2 years

Mathematics
1 answer:
vladimir1956 [14]3 years ago
5 0

Answer:

30. 2x²-x-1=0

or, 2x²-2x+x-1=0

or, 2x(x-1)+1(x-1)=0

or, (x-1)(2x+1)=0

so, x-1 = 0 or, x = 1

and 2x+1 = 0 or, 2x = -1 or, x = -1/2

so, x = 1 and 1/2

31. 3x²-14x=5

or, 3x²-14x-5=0

or, 3x²-15x+x-5=0

or, 3x(x-5)+1(x-5)=0

or, (x-5)(3x+1)=0

so, x-5=0 or, x=5

and 3x+1=0 or, 3x=-1 or, x=-1/3

so, x = 5 and -1/3

Answered by GAUTHMATH

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0.800, 0.83, 8.00, 8.30

Step-by-step explanation:

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Answer:

23

Step-by-step explanation:

100 is the exterior angle.

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The sum of two numbers is 134. If three times the smaller number is subtracted from the larger number, the result is 18. Find th
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Let, larger number be x and smaller number be y.

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It can be written as,

x+y=134\ldots\ldots\text{.}(1)

Condition 2: If three times the smaller number is subtracted from the larger number, the result is 18.

The equation is,

x-3y=18\ldots\ldots\ldots\text{.}\mathrm{}(2)

Solving equation 1 and 2,

\begin{gathered} \text{subtract equation (2) from (1),} \\ x+y-(x-3y)=134-18 \\ x+y-x+3y=116 \\ 4y=116 \\ y=29 \end{gathered}

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Answer:

Larger number is x=105

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2 years ago
6.<br> Evaluate nk - 2b +8 itb = 1.5, k = 8, and n = 7
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Answer:

61

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answer61

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4 years ago
Solve for g.
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G = 16 or -16

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