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3 years ago

Plz answer this (5x^2-3x+1)-(4x+2x^2-2)

Mathematics

1 answer:

fenix001 [56]3 years ago

5 0

The answer to this is - + 3

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Solve for 2x^2-4x+5=6

Softa [21]

To solve for a variable, you need to get it (x) by itself.

2x² - 4x + 5 = 6 Subtract 6 from both sides
2x² - 4x - 1 = 0 Plug this into the Quadratic Formula

a = 2 , b = -4 , c = -1
x = $\frac{-b \pm \sqrt{b^2 - 4ac} }{2a}$ Plug in your values
x = $\frac{-(-4) \pm \sqrt{(-4)^2 - 4(2)(-1)} }{2(2)}$ Simplify
x = $\frac{4 \pm \sqrt{16 + 8} }{4}$ Simplify
x = $\frac{4 \pm 2\sqrt{6} }{4}$ Simplify by removing a 2 from every term
x = $\frac{2 \pm \sqrt{6} }{2}$ Simplify by taking the fraction apart
x = $\frac{2}{2} \pm \frac{ \sqrt{6} }{2}$ Change $\frac{2}{2}$ to 1
x = 1 $\pm \frac{ \sqrt{6} }{2}$ Simplify $\frac{ \sqrt{6} }{2}$ to $\sqrt{ \frac{3}{2} }$
x = 1 $\pm \sqrt{ \frac{3}{2} }$

4 0

3 years ago

Help.................................................

velikii [3]

Answer:

3 newtons to the left

Step-by-step explanation

since the arrows are pointing towards each other you have to subtract

5-2=3

Since five is the greatest number it will be pushing to the left

6 0

3 years ago

42 cats and 14 fish what is the ratio to cats to fish

sladkih [1.3K]

Answer:

42:14

42 cats and 14 fish

8 0

3 years ago

Read 2 more answers

Use cross products to demonstrate whether the two ratios are equivalent in this problem: 4 over 6 times 14 over 21

ExtremeBDS [4]

4/6 = 14/21 When using cross product always multiply the left fractions numerator times the right side fractions denominator and the left side fractions denominator times the right side fractions numerator 4×21 = 6×14 84=84 They are equivalent because they both equal 84

3 0

3 years ago

4k-(2k-6) simplify the expression

Semenov [28]

Hope this helps you out . Of solving for k then just set it equal to zero

7 0

3 years ago