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quester [9]
3 years ago
6

How do you solve 2x²-x=3 by factoring

Mathematics
2 answers:
docker41 [41]3 years ago
6 0
The answer for your question is 2x^2-x-3=0
so, by factoring it we have. (2x-3)*(x+1)
Gala2k [10]3 years ago
5 0

Answer:

the value of x are -1 and  \frac{3}{2}

Step-by-step explanation:

we need to find the factor of 2x²-x=3  

subtract both the sides by 3, in above expression

2x²- x - 3 = 3 - 3

2x²- x - 3 = 0

we can write  x as -3x + 2x

2x²- 3x +2x - 3 = 0

2x²+ 2x -3x - 3 = 0

take out the common terms,

2x(x+ 1) -3(x +1) = 0

(x+ 1)(2x-3) = 0

If x+ 1 =0

⇒ x = -1

If 2x - 3=0

⇒ x=\frac{3}{2}

Therefore, the value of x are -1 and  \frac{3}{2}

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katen-ka-za [31]
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6 0
3 years ago
How many pounds of a 4% solution of borax must be added to 24 pounds of a
Marrrta [24]

Answer:

8 pounds of 4% solution of borax

Step-by-step explanation:

Let x  be the 4% solution

24 pounds of 12% solution  

obtain a 10% solution of borax that is (x+24) pounds

4% is 0.04  and 12% is 0.12  , 10% is 0.1

0.04x+24(.12)=0.1(x+24)

solve the equation for x

0.04x+24(.12)=0.1(x+24)\\0.04x+2.88= 0.1x+2.4\\2.88= 0.06x+2.4\\0.48=0.06x\\x=8

so 8 pounds of 4% solution of borax

6 0
3 years ago
What is the slope of (6,4) and (15,12)
Yanka [14]

Answer: Slope (m) =

ΔY

ΔX

=

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9

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Step-by-step explanation:

4 0
3 years ago
A mixture of 30 liters of paint is 25% red tint, 30% yellow tint and 45% water. 8 liters of yellow tint are added to the origina
Feliz [49]

Answer:

Yellow Paint: 0.44736842105%

Red Paint: 0.19736842105%

Water: 0.35526315789%

Step-by-step explanation:

Yelow:

30 x 0.3 = 9

8 + 9 = 17

30 + 8 = 38

17/38 = 0.44736842105%

Red:

30 x 0.25 = 7.5

7.5/38 = 0.19736842105%

Water:

30 x 0.45 = 13.5

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3 years ago
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